Caramel Seven-Minute Frosting - cooking recipe

Ingredients

2 unbeaten egg whites
1 1/2 c. dark brown sugar
1/4 tsp. cream of tartar
1/3 c. cold water
dash of salt
1/2 tsp. maple flavoring

Preparation

Place all ingredients, except maple flavoring, in top of double boiler (not over heat); beat 1 minute with electric beater to blend.
Place over boiling water on low to medium heat and cook, beating constantly, about 7 minutes.
Do not overcook. Remove from boiling water.
Add maple flavoring and beat 2 more minutes.