CRUMB MIXTURE:

1/2 c. all-purpose flour
1/2 c. Domino granulated sugar
1/4 c. butter
1/2 tsp. ground cinnamon
1 c. chopped nuts

CAKE MIXTURE:

3 c. all-purpose flour
2 tsp. baking powder
1/2 tsp. salt
1/2 tsp. ground cinnamon
1/2 c. butter
1 1/2 c. Domino granulated sugar
3 eggs
1 1/2 c. sour cream
1 tsp. vanilla extract
Domino confectioners' 10X sugar

Combine all ingredients for the crumb mixture in a small bowl. Mix with a fork until mixture resembles coarse crumbs; set aside.

Combine flour, baking powder, salt and cinnamon and set aside. Cream butter with sugar. Add eggs, sour cream and vanilla. Gradually stir in flour mixture. Beat at medium speed of electric mixer 2 minutes. Spoon about 2 cups of the batter into a non-stick 12-cup fluted tube pan. Sprinkle with half of the reserved crumb mixture (about 1 cup). Carefully spoon 2 cups of batter spreading it to cover crumbs.

Repeat layers with remaining crumb mixture than batter. Bake at 350 degrees for 55 to 60 minutes or until wooden pick inserted in center of cake comes out clean. Cool 15 minutes. Invert onto a cooling rack or serving platter. Sprinkle with confectioners' sugar just before serving. Makes 16 servings.