Old-Fashioned Chocolate Filling
3 ounces melted chocolate
3 tablespoons cream
1 egg
3/4 cup powdered sugar
1 tablespoon corn starch
1/8 teaspoon salt
1 teaspoon vanilla extract
Add melted chocolate and cream to beaten egg; mix in powdered sugar gradually; add corn starch which has been mixed with a little cold water; cook in top of double boiler, stirring constantly until smooth and thick; add salt and vanilla. Spread between layers of cake.