Pineapple Pound Cake

From the kitchen of M. McGee:

2 sticks butter
3 cups sugar
5 eggs - separated
3 cups flour
1/4 tsp. soda
1 (8 oz) sour cream
1 1/2 tsp. lemon flavoring
1 cup crushed pineapple ( undrained )

Mix soda and flour, sift together 3 times.
Cream butter and sugar--then egg yolks and sour cream and flavoring.
Blend in flour in 3 additions.
Beat until creamy, then add pineapple.
Fold in egg whites (beaten until stiff)
Bake in 10 inch tube pan @ 325* for 1 1/2 hours.

Glaze optional:  Pineapple juice and confectioner's sugar