Go Back
+ servings
Banana Muffins

Small Batch Sour Cream Banana Muffins

Small Batch Sour Cream Banana Muffins makes 4 muffins.
Course Breakfast
Cuisine American
Keyword Banana Muffins, Sour Cream, Streusel
Prep Time 10 minutes
Cook Time 25 minutes
Total Time 35 minutes
Servings 5
Author Anna
Cost 5


  • 3/4 cup ripe mashed banana 170 grams
  • 3 scant tablespoons sugar about 35 grams
  • 1 tablespoon plus a teaspoon of vegetable oil 18 grams
  • 1 large egg yolk
  • 2 slightly generous tablespoons sour cream 38 grams
  • 1/4 teaspoon vanilla extract generous
  • 3/4 cup all-purpose flour 3.4 oz
  • 1 teaspoon baking powder
  • 1/8 teaspoon baking soda
  • 1/8 teaspoon salt

Nut Topping:

  • 2 tablespoons brown sugar
  • 2 teaspoons flour
  • Pinch salt omit if using salted butter
  • 1/4 teaspoon cinnamon
  • 2 tablespoons chopped nuts
  • 2 teaspoons unsalted butter melted


  • Preheat oven to 400 degrees F. and grease five muffins cups.
  • Mix together the mashed banana, sugar, vegetable oil and egg yolk. Stir in the sour cream and vanilla.
  • Mix together the flour, baking powder, baking soda and salt. By hand, stir flour mixture into banana mixture.
  • Scoop up batter and divide evenly among greased cups.
  • Make topping. Mix together brown sugar, flour, salt, and cinnamon. Stir in nuts. Add melted butter and stir until you have moist crumbs. Sprinkle tops of muffins with crumbs (you will have leftovers).
  • Bake on center rack at 400 degrees for 8 minutes.
  • Reduce oven heat to 350 degrees F and bake for another 15 minutes or until a cake tester or toothpick inserted in the muffins comes out clean. My muffins didn’t really seem done, but the toothpick came out free of crumbs so I knew they were.


You don't have to do this, but I've found that if I make the batter and let it stand for about 20 minutes before scooping, the muffins rise a little higher and have nicer crowns.