Mix-in Muffins Recipe
- 1 1/2 cups all-purpose flour
- 1/3 cup sugar
- 1 1/2 teaspoons baking powder
- 1/4 teaspoon baking soda
- 1/4 teaspoon salt
- 1 stick (1/2 cup) unsalted butter
- 1 cup sour cream
- 1 large egg
- 1 teaspoon vanilla
- Preheat oven to 400°F. and butter twelve 1/3-cup muffin cups.
- Into a bowl sift together flour, sugar, baking powder, baking soda, and salt. Melt butter and in a small bowl whisk together with sour cream, egg, and vanilla. Stir butter mixture (and additional ingredients; see note, above) into flour mixture until just combined. Divide batter among muffin cups and bake in middle of oven until golden and a tester comes out clean, about 20 minutes.
