Forget everything you thought you knew about standard, boring barbecue! When the weather finally gets warm enough for the grill, I immediately start dreaming about tossing predictable flavors out the window. This year, we’re getting gourmet, and that means taking advantage of that super tart, beautiful spring produce. Seriously, making Rhubarb BBQ Sauce Grilled Chicken is a total game-changer.

I know, I know—rhubarb? In BBQ sauce? But trust me, that aggressive tartness cuts through the richness of the grilled breast meat so perfectly, making for the ultimate sweet and savory chicken dinner. It’s honestly my favorite way to welcome grilling season. I whip up a big batch of the sauce on the stovetop while the grill heats up, and suddenly, you’ve got a fancy, restaurant-quality meal coming off the coals in under an hour. It’s so much better than store-bought, I promise!

Why This Rhubarb BBQ Sauce Grilled Chicken Recipe Works (Spring Grilling Ideas)

This isn’t your typical ballpark barbecue, folks. The whole magic here is harnessing that incredible, bright tartness of fresh rhubarb and taming it with smoky paprika and deep brown sugar. It makes for a sauce that clings perfectly to the meat without being overly sweet—a totally winning combination for the grill! This is easily one of my favorite Spring grilling ideas. If you’re looking for more ways to use produce outdoors, check out my guide on summer chicken recipes with fresh produce.

It delivers that perfect tart and smoky chicken flavor profile.
The rhubarb naturally creates a vibrant color that looks amazing caramelizing on the grill.
Using it makes you feel like you’re cooking up some seriously gourmet grilled chicken right in your backyard.

Unique Grilling Recipes: A Seasonal Flavor Twist

It’s all about getting seasonal, right? Rhubarb peaks right when we all want to fire up the grill for the first time after winter. Using it lifts the whole experience up beyond basic ketchup-based sauces. These kinds of unique grilling recipes are what keep cooking fun year after year. When you make this, you just know you’re serving up flavor nobody else is bringing to the cookout!

Ingredients for Rhubarb BBQ Sauce Grilled Chicken

Okay, now for the fun part—gathering our ingredients! We need two main groups here: the things that make that gorgeous sauce brilliant and the chicken that’s going to soak up all that flavor. It’s pretty straightforward, honestly, but the quality of the rhubarb really matters here. I’ve written down exactly what you need so you don’t even have to think about it. And hey, if you’re looking for great sides, my glaze-roasted broccoli recipe uses a honey mustard dressing that works beautifully alongside this tangy chicken!

Don’t stress about the quantities; this makes enough sauce for two big chicken breasts with plenty leftover because you’re going to want to slather it on everything!

For the Homemade Rhubarb Barbecue Sauce

1/2 cup chopped fresh rhubarb (Make sure it’s chopped small!)
1/2 cup ketchup
1/4 cup apple cider vinegar
1/4 cup packed brown sugar
2 tablespoons molasses
1 tablespoon Worcestershire sauce
1 teaspoon smoked paprika
1/2 teaspoon garlic powder
1/4 teaspoon cayenne pepper (I always add this—it gives a nice little kick!)

For the Tart and Smoky Chicken

2 large chicken breasts (about 1.5 lbs total—mine were huge this week!)
1 tablespoon olive oil
1 teaspoon salt
1/2 teaspoon black pepper

How to Make Homemade Rhubarb Barbecue Sauce

The sauce is where the real magic happens, and honestly, it’s so satisfying to build a homemade rhubarb barbecue sauce from scratch. Grab that small saucepan—this is where our Rhubarb BBQ recipe comes together. You’re just going to toss everything in there: your chopped rhubarb, ketchup, that sharp apple cider vinegar, the brown sugar, molasses, Worcestershire, and all those lovely spices like smoked paprika.

Get that pan over medium heat and bring it just to a simmer. We need to let that rhubarb start melting down and surrender its tartness to the other flavors in the pot. I usually let it bubble gently for about 15 to 20 minutes, stirring every few minutes so nothing sits on the bottom and scorches. You’re looking for a visible thickening—the sauce should coat the back of a spoon a bit. Once it looks right, pull it completely off the burner. This part is key for safety!

Simmering and Thickening the Rhubarb BBQ Recipe

After it cools for just a minute, you need to make it smooth. Grandma always said you can’t have chunks in a good glaze! I prefer my immersion blender right in the pot, but if you don’t have one, carefully move it in batches to a regular blender. Blend until it’s perfectly velvety. If, after blending, you want it even thicker—maybe that beautiful, sticky consistency you see on ribs—just pop it back on low heat and let it simmer for maybe five more minutes. Find my detailed guide on easy rhubarb sauce instructions if you need more hands-on help!

Preparing and Grilling the Chicken for Your Rhubarb BBQ Sauce Grilled Chicken

Now that we have this incredible, tangy sauce ready to go, it’s time to focus on the star: the chicken! We want these breasts to be juicy, perfectly cooked, and ready to accept that beautiful glaze. First things first, grab your chicken. Brush it lightly all over with that olive oil—this helps the seasonings stick and just prevents sticking in general. Then, just a good sprinkle of salt and pepper on both sides. I sometimes whip up a quick marinade using my tangy grilled chicken marinade guide, but honestly, simple salt and pepper is great if you’re in a hurry—the sauce does most of the heavy lifting!

Next, heat up that grill! You’re aiming for a nice medium-high, which usually lands us right around 400 degrees Fahrenheit. You want serious heat to get good grill marks, but not so hot that the outside burns before the middle cooks through. Let the chicken cook for about 6 to 8 minutes on one side. Resist the urge to mess with it too much! Flip them, and cook the other side for another 6 to 8 minutes.

Grilling Technique for Pairing Rhubarb Sauce with Poultry

This is the part that separates the great grilled chicken with fruit sauce from the carbonized mess! Because our Rhubarb BBQ Sauce has sugar in it—that lovely brown sugar—it will burn fast if you put it on too early. Don’t start brushing until the chicken is almost done. We’re talking the last 2 minutes of cooking on the first side, brush it on, flip, and glaze the other side for just one more minute. We are just warming that sauce and letting it caramelize, not cooking it into oblivion. Pull them off immediately when the internal temp hits 165 degrees Fahrenheit. Always let them rest for five minutes; that juicy moisture needs time to settle back in!

Tips for Success with Your Rhubarb BBQ Sauce Grilled Chicken

Honestly, even with a fantastic recipe, sometimes things go sideways, right? I remember the first time I made this; I rushed the simmering step and the sauce was way too thin. It just slid right off the chicken! But don’t worry if that happens, because the good news is you can easily fix it—just pop it back on the stove and let it simmer longer until it clings. Remember, this sauce is amazing for more than just chicken, too! For more ways to use this unique creation, check out my guide on pairing rhubarb sauce with meat.

If you’re feeling brave, always try reducing the brown sugar by just one tablespoon for a little extra tang. It’s a great move if your rhubarb was naturally very sweet this season.
If you follow the instructions but still want a thicker sauce, boil it for an extra 5 minutes *after* you blend it. Low and slow heat helps that sugar structure build up.
While not strictly necessary, giving the chicken a quick 30-minute olive oil, salt, and pepper marinade before it hits the heat really amps up the flavor profile.

Storage and Reheating Instructions for Leftover Rhubarb BBQ Sauce Grilled Chicken

If you’re lucky enough to have any leftovers of this incredible Rhubarb BBQ Sauce Grilled Chicken, storing it separately is key to keeping that chicken tender. Keep the leftover sauce in an airtight container in the fridge; it lasts a good week, easily! When you store the cooked chicken, make sure you don’t smother it in sauce first, or it gets gooey.

To reheat the chicken, ditch the microwave if you can, because that just dries poultry out. I like wrapping the slices loosely in foil and popping them in a 350-degree oven for about 10 minutes—that keeps the meat soft. Then, you just warm up a little extra tangy sauce on the stovetop to pour over the top at the end!

Serving Suggestions for This Sweet and Savory Chicken Dinner

So you’ve got this stunning sweet and savory chicken dinner cooked perfectly, what’s next? You need sides that can stand up to that tart, smoky glaze! Because the sauce is bright, I always lean into something creamy or crunchy to balance it out. A cool, homemade creamy coleslaw is always a winner.

Or, if you want to stick with the roasting theme, try some simple vegetables like asparagus or broccoli. If you want my go-to green side, check out the recipe for honey mustard roasted broccoli; it adds a nice sweet mustard note that plays well with the rhubarb. And whatever you do, make extra sauce—it’s the best dipping condiment ever!

Frequently Asked Questions About Rhubarb BBQ Sauce Grilled Chicken

I get asked these questions all the time, especially when I try serving this at a big cookout! People are always eager to know how to tweak the flavor or make sure their Rhubarb BBQ recipe comes out perfect the first time. Here are the few things I always tell folks when they try making their own batch of seasonal BBQ recipes! For more great ideas on using produce outdoors, check out my overview of seasonal BBQ recipes.

Can I use frozen rhubarb in the Rhubarb BBQ recipe?

You absolutely can! I usually run out of fresh rhubarb before I run out of sauce ingredients, so I keep bags of frozen rhubarb in the freezer just for this. You don’t even need to thaw it first! Just toss it straight into the saucepan when you start the sauce. It might take an extra minute or two to heat up, but it breaks down beautifully into that smooth, tangy base we love.

How can I make the Rhubarb BBQ Sauce spicier?

If the 1/4 teaspoon of cayenne pepper isn’t doing it for you—and believe me, I get it!—you have a couple of options. My favorite way to kick up the heat is by adding a small dash of your favorite hot sauce right after you blend the sauce smooth. Or, if you’re feeling brave, finely mince half a habanero pepper (seeds and all!) and simmer it right along with the rhubarb. That’ll give you a real *oomph* for that gourmet grilled chicken experience!

What is the best way to grill chicken for a fruit sauce?

The secret here is timing, time, time! Fruit sauces have sugar, and sugar burns before the chicken is done cooking, turning your beautiful meat black and bitter. You *must* wait until the chicken is nearly finished—I mean down to the last couple of minutes—before you start brushing on that delicious rhubarb BBQ sauce. This allows the sauce to melt, warm up, and get sticky without burning through before your internal temperature hits the safe zone.

Nutritional Estimate for Rhubarb BBQ Sauce Grilled Chicken

Now, I always tell people that when you’re cooking with fresh ingredients like this, the numbers are just a guide, okay? These estimates are for one serving—that’s one grilled chicken breast smothered in the sauce—and they assume you used average-sized chicken breasts. If you use chicken thighs, things will change, naturally! This recipe is actually pretty lean, but that brown sugar in the sauce means we aren’t exactly carb-free, which is fine by me for a summer treat!

Calories: 450
Protein: 48g
Fat: 10g (Only 2g saturated!)
Carbohydrates: 40g
Sugar: 35g

Keep in mind these are just rough figures based on standard products; your exact results depend on how much sugar you pack in your sauce!

Grilled Chicken with Homemade Rhubarb BBQ Sauce

Author: Ahazzam
Total Time: 45 min
Yield: 2 servings
Diet: Low Fat

Print Recipe

Description

Prepare grilled chicken topped with a homemade barbecue sauce featuring the tart flavor of rhubarb balanced with sweet and smoky notes.

Ingredients

Scale

2 large chicken breasts (about 1.5 lbs total)
1 tablespoon olive oil
1 teaspoon salt
1/2 teaspoon black pepper
1/2 cup chopped fresh rhubarb
1/2 cup ketchup
1/4 cup apple cider vinegar
1/4 cup packed brown sugar
2 tablespoons molasses
1 tablespoon Worcestershire sauce
1 teaspoon smoked paprika
1/2 teaspoon garlic powder
1/4 teaspoon cayenne pepper (optional)

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Instructions

Prepare the Rhubarb BBQ Sauce: Combine rhubarb, ketchup, apple cider vinegar, brown sugar, molasses, Worcestershire sauce, smoked paprika, garlic powder, and cayenne pepper (if using) in a small saucepan.
Bring the mixture to a simmer over medium heat, stirring occasionally. Reduce heat to low and cook for 15 to 20 minutes, or until the rhubarb has broken down and the sauce has thickened slightly.
Remove the sauce from the heat. Use an immersion blender or carefully transfer the sauce to a regular blender to blend until smooth. Set aside.
Prepare the Chicken: Brush the chicken breasts with olive oil and season both sides with salt and pepper.
Preheat your grill to medium-high heat (about 400 degrees Fahrenheit).
Grill the chicken for 6 to 8 minutes per side, until the internal temperature reaches 165 degrees Fahrenheit.
During the last 2 minutes of grilling, brush the tops of the chicken generously with the prepared Rhubarb BBQ Sauce. Flip and brush the other side, grilling for 1 more minute.
Remove the chicken from the grill and let it rest for 5 minutes before slicing and serving with extra sauce on the side.

Notes

For a tangier sauce, reduce the brown sugar by one tablespoon.
If you prefer a thicker sauce, simmer it for an additional 5 minutes after blending.
Marinate the chicken in a simple mixture of olive oil, salt, and pepper for 30 minutes before grilling for added flavor.

Prep Time: 15 min
Cook Time: 30 min
Category: Dinner
Method: Grilling
Cuisine: American

Nutrition

Serving Size: 1 chicken breast with sauce
Calories: 450
Sugar: 35
Sodium: 650
Fat: 10
Saturated Fat: 2
Unsaturated Fat: 8
Trans Fat: 0
Carbohydrates: 40
Fiber: 2
Protein: 48
Cholesterol: 140