Sour Cream Brunch Cake

Serving Size  : 12  

1 cup margarine, softened
2 cups sugar
2 eggs
1/2 teaspoon vanilla
2 cups flour
1 teaspoon baking powder
1/4 teaspoon salt
1 cup sour cream, light

Filling:
1/2 cup pecans, chopped
1 tablespoon cinnamon
3 tablespoons brown sugar, packed

Grease and flour an angel food cake pan. Mix all ingredients except filling , adding sour cream last. Mix filling ingredients in a small bowl. Pour half of batter into pan, sprinkle with half of filling, remainder of
batter then remainder of filling. Bake in a preheated 350 degree oven for 1 hour.