Apple Streusel Muffins

Ingredients
2 cups all-purpose flour
1 cup sugar
1 teaspoon baking powder
1/2 teaspoon baking soda
1/2 teaspoon salt
2 eggs
1/2 cup butter, melted
1-1/4 teaspoons vanilla extract
1-1/2 cups chopped peeled tart apples

STREUSEL TOPPING:
1/3 cup packed brown sugar
1 tablespoon all-purpose flour
1/8 teaspoon ground cinnamon
1 tablespoon cold butter
GLAZE:
1-1/2 cups confectioners' sugar
1 to 2 tablespoons milk
1 teaspoon butter, melted
1/4 teaspoon vanilla extract
1/8 teaspoon salt

Directions
In a bowl, combine the flour, sugar, baking powder, baking soda and salt. In another bowl, whisk the eggs, butter and vanilla; stir into dry ingredients just until moistened (batter will be stiff). Fold in apples. 

Fill greased or paper-lined muffin cups three-fourths full. In a small bowl, combine the brown sugar, flour and cinnamon; cut in butter until crumbly. Sprinkle over batter.
 
Bake at 375F for 15-20 minutes or until a toothpick comes out clean. Cool for 5 minutes before removing from pan to a wire rack to cool completely. Combine glaze ingredients; drizzle over muffins. Yield: 1 dozen. 

Source:  Taste of Home