1 yellow cake mix
3 tbsp. fruit flavored gelatin (regular size pkg.)

FROSTING:

Gelatin remaining in pkg.
2 sm. egg whites
1 c. sugar
1/8 tsp. cream of tartar
1/4 c. water

Mix first two ingredients and bake cake as usual.

Mix frosting ingredients in top of double boiler. Place over boiling water and beat with portable electric hand beater about 4 minutes until mixture holds soft peaks. Remove from boiling water and beat 3 or 4 more minutes until peaks stiffen. Ice cake immediately. This fills and frosts top and sides of cake.