Cinnamon Apple Coffee Cake
1 1/4 cups sugar
3/4 cup (1 1/2 sticks) butter, softened
1/2 cup sour cream
2 large eggs
2 cups all-purpose flour
1 teaspoon baking powder
1/2 teaspoon baking soda
1/4 teaspoon salt
2 cups chopped, peeled apples (about 2 medium)
1 teaspoon cinnamon
Preheat the oven to 350F. Coat a 9-inch springform pan with cooking spray.
Combine 1 cup sugar and the butter in a large bowl. Beat with an electric mixer on high speed until light and fluffy. Add the sour cream and eggs; beat until blended.
Mix the flour, baking powder, baking soda and salt in a small bowl. Add to the butter mixture; beat until blended. Stir in the apples. Spread the batter in the prepared pan.
Combine the remaining 1/4 cup sugar and the cinnamon in a small bowl. Sprinkle over the batter in the pan.
Bake the coffee cake until a toothpick inserted in the center comes out clean, 55 to 65 minutes.
Cool in the pan on a wire rack 10 minutes.
Remove the side of the pan.
Serve warm or cool.