Apple-Sour Cream Streusel Coffee Cake

Ingredients

• 3 cups biscuit baking mix (bisquick)
• 2 large eggs
• 1 cup sugar
• 1/4 cup margarine or butter
• softened
• 1 1/2 cups sour cream
• 1 1/2 teaspoons vanilla extract
• 2 cups apples
• 1/4 cup brown sugar packed
• 1/4 cup nuts finely chopped
• 1 teaspoon cinnamon ground
• 1/4 cup margarine or butter
• 2 cups powdered sugar
• 1 teaspoon vanilla extract
• 1 teaspoon milk

Instructions

1. Heat oven to 350F (180C).
2. Grease and flour 12-cup bundt cake pan.
3. Prepare Streusel Filling.
4. Mix remaining ingredients except apples; beat vigorously 1 minute.
5. Spread 13 of the batter (about 1 1/4 cups) in pan and sprinkle with half of the Streusel Filling (about 1/4 cup) and half of the apples; repeat.
6. Spread with remaining batter.
7. Bake until wooden pick inserted near center comes out clean, 45 to 50 minutes; cool 10 minutes.
8. Invert on heatproof serving plate; remove pan.
9. Dust cake with powdered sugar.
10. STREUSEL FILLING: Mix all ingredients until crumbly.
11. GLAZE: Heat margarine or butter in saucepan until melted.
12. Stir in powdered sugar and vanilla.
13. Stir in 1 to 2 tablespoons milk, 1 teaspoon at a time, until smooth and of desired consistency.