2 c. buttermilk
1/2 c. sugar
1 c. crushed pineapple, drained
1 egg white
1 1/2 tsp. vanilla

Combine buttermilk, sugar and pineapple, freeze to a slush. Remove from refrigerator, add egg white and vanilla and beat until light and fluffy with electric mixer. Cover and freeze solid, stirring twice during the process. Allow to soften 20 minutes at room temperature before serving.