Cream together crisco, margarine, and sugar to well combined.

Add egg yolks in one at a time.

In separate bowl combine flour, jello mix, and baking soda. Combine buttermilk and strawberry puree. Alternately add flour mixture and buttermilk mixture.

Add vanilla. Beat egg whites in separate bowl until stiff. Fold egg whites into batter.

Divide batter into two 9 in cake pans. Bake at 350 for 35 minutes.