7 Minute Icing - cooking recipe

Ingredients

3 egg whites
2 c. sugar
1/2 Tbsp. cream of tartar
6 Tbsp. water
6 large marshmallows
1 Tbsp. vanilla flavoring or other flavoring, as desired

Preparation

Mix all ingredients in top of double boiler, place over boiling water and cook for 7 minutes, beating constantly with an electric mixer until it will hold a peak.
Remove from heat; add vanilla and mix until it is the right consistency to spread on cake.