Apple Coffeecake - cooking recipe

Ingredients

1/2 lb. stick margarine, softened
1 c. sugar
3 eggs
1 tsp. vanilla
1 tsp. baking soda
2 tsp. baking powder
2 1/2 c. unbleached flour
1 c. plain yogurt
3 apples, peeled and sliced
2 tsp. cinnamon
1/4 c. sugar
1 c. chopped walnuts

Preparation

In a large bowl, cream together the stick of margarine and the cup of sugar until light and fluffy.
Add the eggs, one at a time, and beat well after each.
Add the vanilla.