Orange Streusel Coffeecake

Cocoa Streusel (recipe follows)
3/4 cup (1 1/2 sticks) butter or margarine, softened
1 cup sugar
3 eggs
1 tsp vanilla
1/2 cup dairy sour cream
3 cups all purpose flour
2 tsp baking powder
1 tsp baking soda
1 cup orange juice
2 tsp grated orange peel
1/2 cup orange marmalade or apple jelly

1. Prepare Cocoa Streusel. Heat oven to 350 degrees. Generously grease 12 cup fluted tube pan.
2. Beat butter and sugar in large bowl until well blended. Add eggs and vanilla; beat well. Add sour cream; beat until blended. Stir together flour, baking powder and baking soda; add alternately with orange juice to butter mixture, beating until well blended. Stir in orange peel.
3. Spread marmalade in bottom of prepared pan; sprinkle half or streusel over marmalate. Pour half of batter into pan, spreading evenly. Sprinkle remaining streusel over batter; spread remaining batter evenly over streusel.
4. Bake about 1 hour or until tootpick inserted near center of cake comes out clean. Loosen cake from side of pan with metal spatula; immediately invert onto serving plate.

Cocoa Streusel: Stir together 2/3 cup packed light brown sugar, 1/2 cup chopped walnuts, 1/4 cup cocoa and 1/2 cup sweetened coconut flakes, if desired.