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Ultra Moist Banana Oatmeal Muffins with Cinnamon Streusel

Close-up of a soft oatmeal muffins cut in half showing the moist interior and thick cinnamon streusel topping.
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Learn the secret to baking unbelievably moist oatmeal muffins using ripe bananas. This easy, one-bowl recipe delivers hearty, wholesome breakfast baked goods 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 ground cinnamon
  • 1/2 teaspoon salt
  • 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: 1/4 cup packed light brown sugar
  • For Streusel: 1/2 teaspoon ground cinnamon
  • For Streusel: 2 tablespoons cold unsalted butter, cut into small pieces

Instructions

  1. Preheat your oven to 400 degrees F. 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, cinnamon, and salt. 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 only until the flour streaks disappear. Do not overmix; a few lumps are fine for moist oatmeal muffins.
  6. 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.
  7. Divide the batter evenly among the 12 muffin cups, filling each about two-thirds full.
  8. Sprinkle the cinnamon streusel topping evenly over the top of the batter in each cup.
  9. Bake for 18 to 20 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 texture and sweetness, make sure your bananas are heavily spotted or almost black before mashing them.
  • If you want to skip the streusel, you can add 1/2 cup of chocolate chips or chopped walnuts to the batter instead.
  • This recipe uses a slightly higher oven temperature initially to help the tops set quickly, contributing to the soft interior.

Nutrition

Find it online: https://cookerycourier.com/oatmeal-muffins-ultra-moist-banana-recipe/