Grandma Sherbondy's Poppy Seed Cake

This recipe is a family favorite. My grandmother made this recipe only for the holidays and it just wasn't the holidays without it. Be prepared for compliments!!!

Grandma's Poppy Seed Cake

1 can Solo poppy seed filling
1 c. butter or margarine
1 c sour cream
4 eggs, separated
1 tsp vanilla
1 tsp salt
1 tsp baking soda
1 1/2 c. sugar
2 1/2 c flour

Preheat oven to 350 degrees.

Cream butter and sugar until light and fluffy.  Add poppy seed filling.
Add egg yolks, one at a time, beating well after each addition.
Blend in vanilla and sour cream. 

Sift together flour, soda, and salt, add gradually to poppy mixture,
beating well after each addition.  Fold in stiffly beaten egg whites.
Pour into greased 9 or 10" greased tube pan.

Bake in 350 degree oven 50-60 minutes or until knife inserted comes
out clean.  Allow cake to cool about 15 minutes.  Remove from pan.