This recipe comes from a gelatin packet and was found in a large collection, date unknown. Recipe is typed below along with a scanned copy.

RAINBOW RIBBON SALAD

5 packages (3 oz. each) JELL-O Brand Gelatin, any 5 different flavors
6 1/4 cups boiling water
5 teaspoons vinegar
1 cup mayonnaise

Dissolve one package gelatin in 1 1/4 cups of the boiling water; add 1 teaspoon of the vinegar. Pour 3/4 cup into a 9-inch square pan. Chill until set but not firm, about 15 minutes. Chill remaining gelatin in bowl; gradually blend in 3 tablespoons of the mayonnaise and spoon over gelatin in pan. Chill until set but not firm, about 15 minutes. Repeat with each remaining flavor of gelatin. Chill at least 2 hours. Cut in rectangles and serve with salad greens and relishes, if desired. Makes 12 servings.