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Close-up of a moist oatmeal muffin featuring a thick, glistening brown sugar crumb topping.

Ultra Moist Banana Oatmeal Muffins with Cinnamon Streusel


  • Author: Ahazzam
  • Total Time: 38 min
  • Yield: 12 muffins
  • Diet: Vegetarian

Description

Bake unbelievably moist oatmeal muffins using ripe bananas for natural sweetness. This easy, one-bowl recipe delivers hearty breakfast muffins topped with a crunchy cinnamon streusel for a perfect morning treat.


Ingredients

Scale
  • 1 3/4 cups all-purpose flour
  • 1 1/2 cups rolled oats
  • 1 teaspoon baking soda
  • 1 teaspoon baking powder
  • 1/2 teaspoon salt
  • 1 teaspoon ground cinnamon
  • 1/2 cup unsalted butter, melted
  • 1/2 cup packed light brown sugar
  • 1/4 cup pure maple syrup
  • 2 large eggs
  • 1 teaspoon vanilla extract
  • 3 very ripe medium bananas, mashed (about 1 1/2 cups)
  • 1/4 cup milk (any kind)
  • For Streusel: 1/4 cup all-purpose flour
  • For Streusel: 2 tablespoons granulated sugar
  • For Streusel: 1/4 teaspoon ground cinnamon
  • For Streusel: 2 tablespoons cold unsalted butter, cut into small pieces


Instructions

  1. Preheat your oven to 400°F (200°C). Line a 12-cup muffin tin with paper liners or grease well.
  2. In a large bowl, whisk together the flour, rolled oats, baking soda, baking powder, salt, and 1 teaspoon of cinnamon. This is your dry mix.
  3. In a separate medium bowl, whisk together the melted butter, brown sugar, maple syrup, eggs, and vanilla extract until smooth.
  4. Add the mashed bananas and milk to the wet ingredients and mix until just combined.
  5. Pour the wet ingredients into the dry ingredients. Mix with a spatula until you have just combined the batter. Do not overmix; a few lumps are fine.
  6. Prepare the streusel: In a small bowl, combine the streusel flour, sugar, and 1/4 teaspoon cinnamon. Cut in the cold butter using your fingers or a pastry blender until the mixture resembles coarse crumbs.
  7. Divide the batter evenly among the 12 muffin cups, filling each about two-thirds full.
  8. Sprinkle the cinnamon streusel topping generously over the top of each muffin.
  9. Bake for 5 minutes at 400°F, then reduce the oven temperature to 375°F (190°C) and continue baking for another 15 to 18 minutes, or until a toothpick inserted into the center comes out clean.
  10. Let the muffins cool in the pan for 5 minutes before transferring them to a wire rack to cool completely.

Notes

  • For the moistest results, use bananas that are heavily spotted or almost black.
  • These muffins freeze well. Cool completely, then store in an airtight container or freezer bag for up to three months.
  • If you skip the streusel, you can add 1/2 cup of chocolate chips or chopped walnuts to the batter for variation.
  • Prep Time: 15 min
  • Cook Time: 23 min
  • Category: Breakfast
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 muffin
  • Calories: 245
  • Sugar: 15g
  • Sodium: 180mg
  • Fat: 10g
  • Saturated Fat: 6g
  • Unsaturated Fat: 4g
  • Trans Fat: 0g
  • Carbohydrates: 37g
  • Fiber: 3g
  • Protein: 5g
  • Cholesterol: 45mg