Go Back
–+ servings

Banana Oatmeal Streusel Muffins

Ania
Use up your ripening bananas and make these Banana Oatmeal Streusel Muffins! They are soft and fluffy muffins with oats and sweet bananas. Before baking, the muffins are sprinkled with a buttery sugar streusel on top.
5 from 1 vote

Ingredients
 
 

For the streusel

For the muffins

Instructions
 

For the streusel

  • In a medium sized bowl, add flour, white sugar, dark brown sugar, cinnamon, rolled oats, and cold butter. Using your hands, mix this until crumbly and combined. Set aside while you make the muffin batter.
    1/2 cup all-purpose flour, 4 tbsp butter, 1/4 cup white sugar, 2 tbsp dark brown sugar, 1/4 cups rolled oats, 1/2 tsp cinnamon

For the muffins

  • Preheat the oven to 375℉. Line a muffin tin with 12 liners and set aside. Mash bananas in a large bowl.
    1 1/3 cups fresh bananas
  • In a medium-sized bowl, add in flour, cinnamon, oats, salt, cornstarch, baking powder, and baking soda. Using a spatula, mix until just completely combined.
    1 1/2 cups all-purpose flour, 1 1/4 cups rolled oats, 1 tsp baking soda, 1 tsp baking powder, 1 tsp cinnamon, 1 tbsp cornstarch, 1/2 tsp salt
  • In a large bowl, whisk mashed bananas, oil, eggs, vanilla, sour cream, white sugar, and dark brown sugar. Whisk until well combined. There may be lumps from the bananas but that is okay.
    1/2 cup dark brown sugar, 1 tbsp vanilla, 1/2 cup oil, 1/2 cup full-fat sour cream, 2 large eggs, 1 1/3 cups fresh bananas, 1/4 cup white sugar
  • Add the dry into the wet and using a spatula, gently fold until a soft batter forms.
  • Evenly divide the batter between 12 liners, they should be almost or all the way full. Using a cookie scooper helps big time to minimize the mess. Sprinkle a handful of streusel on top.
  • Bake the muffins at 375°F for 20-25 minutes. The muffins are ready when a toothpick inserted comes out dry with no wet batter.