Lemon Sponge Pudding

Assemble these supplies:

1/2 cup sugar
2 tablespoons flour
1/2 teaspoon salt
2 egg yolks
1 cup milk
2 tablespoons lemon juice
2 teaspoons grated lemon rind
2 egg whites

Steps in preparation:

Mix sugar, flour and salt. Beat egg yolks slightly and with milk. Add lemon juice and rind. Beat egg whites stiff; fold in. Pour into greased baking dish. Place in pan of hot water; bake in moderate oven for 45 minutes. Chill.