- 2 cups all-purpose flour
- 1 teaspoon baking powder
- ½ teaspoon baking soda
- ½ teaspoon salt
- 1 cup white sugar
- ½ cup butter
- 2 large eggs
- 1 ¼ teaspoons vanilla
- 1 ½ cups chopped apples
- ⅓ cup packed brown sugar
- 1 tablespoon all-purpose flour
- ⅛ teaspoon ground cinnamon
- 1 tablespoon butter
Preheat the oven to 375 degrees F (190 degrees C). Grease a 12-cup muffin pan.
Mix flour, baking powder, baking soda, and salt in a medium bowl.
Beat together sugar, butter, and eggs in a large bowl until smooth. Mix in vanilla. Stir in apples, then gradually blend in flour mixture. Spoon batter into the prepared muffin pan.
Make topping: Mix brown sugar, flour, and cinnamon in a small bowl. Cut in butter until mixture resembles coarse crumbs. Sprinkle over each muffin top.
Bake in the preheated oven until a toothpick inserted in the center of a muffin comes out clean, about 20 minutes. Let sit 5 minutes before transferring muffins to a wire rack to cool.