Mary'S Frosted Fruit Salad - cooking recipe

Ingredients

2 (3 ounce) packages lemon Jell-O gelatin
2 cups boiling water
2 cups 7-Up soda
2 (8 ounce) cans crushed pineapple, drained (reserve juice)
2 large bananas, cut
1 cup mini marshmallows
Frosting
2 tablespoons butter
1 cup sugar
1 tablespoon flour
1 cup pineapple juice
1 egg, beaten
12 ounces Cool Whip
nuts, chopped, to taste

Preparation

Dissolve jello in boiling water, stir in 7up.
When jello partially sets, stir in pineapple, banana and marshmallows.
Frosting: Combine sugar, juice, beaten egg and flour in a sauce pan over medium heat until thickened. Mix in butter and chill slightly. Fold into cool whip and spread on top of jello. Sprinkle with chopped nuts.