- 1/2 cup packed brown sugar
- 1/4 cup cornstarch
- 1/4 teaspoon salt
- 1/2 cup water
- 1 tablespoon butter
- Mix together the brown sugar, corn starch, salt, and water in a small saucepan. Bring mixture to a boil, and stir constantly for 1 minute. Remove from heat, and add the butter or margarine.
- Allow the mixture to cool slightly, and spread between layers.