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Close-up of a moist oatmeal muffin featuring a thick, sugary cinnamon crumb topping.

Ultra Moist Banana Oatmeal Muffins with Cinnamon Streusel


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  • Author: Ahazzam
  • Total Time: 35 min
  • Yield: 12 muffins 1x
  • Diet: Vegetarian

Description

You will love these ultra moist oatmeal muffins, packed with ripe banana flavor and topped with a crunchy cinnamon streusel. They are the perfect healthy breakfast to go for busy mornings.


Ingredients

Scale
  • 1 1/2 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 (1 stick) unsalted butter, softened
  • 1/2 cup packed light brown sugar
  • 1/4 cup granulated sugar
  • 2 large eggs
  • 1 cup mashed ripe bananas (about 3 medium)
  • 1/4 cup milk
  • 1 teaspoon vanilla extract
  • For the Streusel:
  • 1/4 cup all-purpose flour
  • 2 tablespoons brown sugar
  • 1/2 teaspoon ground cinnamon
  • 2 tablespoons cold unsalted butter, cut into small pieces

Instructions

  1. Preheat your oven to 375 degrees F. Line a 12-cup muffin tin with paper liners or grease well.
  2. In a medium bowl, whisk together the flour, rolled oats, baking soda, baking powder, salt, and cinnamon. Set this dry mixture aside.
  3. In a large bowl, cream together the softened butter, brown sugar, and granulated sugar using an electric mixer until the mixture is light and fluffy. This step helps create a soft texture.
  4. Beat in the eggs one at a time, mixing well after each addition.
  5. Stir in the mashed bananas and vanilla extract until just combined.
  6. Add the dry ingredients to the wet ingredients in three additions, alternating with the milk, beginning and ending with the dry ingredients. Mix only until the flour streaks disappear; do not overmix to keep your oatmeal muffins moist.
  7. Prepare the streusel: In a small bowl, combine the streusel flour, brown sugar, and cinnamon. Cut in the cold butter using your fingers or a pastry blender until the mixture resembles coarse crumbs.
  8. Divide the batter evenly among the 12 muffin cups, filling each about two-thirds full. Sprinkle the cinnamon streusel topping generously over the top of each muffin.
  9. Bake for 18 to 22 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. These are great for meal prep and freeze well.

Notes

  • For the best moisture, use very ripe bananas. The riper they are, the sweeter and softer your banana oatmeal muffins will be.
  • If you want a healthier option, substitute half the butter with unsweetened applesauce.
  • This recipe makes excellent freezer-friendly breakfast options; cool completely before storing in an airtight container.
  • Prep Time: 15 min
  • Cook Time: 20 min
  • Category: Breakfast
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 1 muffin
  • Calories: 250
  • Sugar: 15
  • Sodium: 180
  • Fat: 11
  • Saturated Fat: 6
  • Unsaturated Fat: 5
  • Trans Fat: 0
  • Carbohydrates: 37
  • Fiber: 2
  • Protein: 4
  • Cholesterol: 55
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