Sour cream date coffee cake

SOUR CREAM DATE COFFEE CAKE

3 cups flour
6 tsp. baking powder
½ tsp. salt
1½ cups sugar
½ cup margarine
2 eggs
1 cup sour cream
1 tsp. vanilla

Filling:
1 cup brown sugar
3 tsp. cinnamon
4 Tbsp. flour
4 Tbsp. soft margarine
½ cup chopped nuts
1 cup coconut
1 cup chopped dates

Sift ingredients. Cut in margarine until it gets crumbly. Beat in eggs, sour cream and vanilla. Pour half into a greased 9x13" pan. Mix filling ingredients. Place half of filling on top of batter; then the rest of batter; then rest of filling on top. Bake at 350°, 35 minutes. Serve warm.