Strawberry Rhubarb Upside-Down Cake

Ingredients:
2 pints strawberries, halved
2 cups rhubarb cut
15 marshmallows
3/4 cups sugar
1/2 cup shortening
1 cup sugar
2 eggs
1-3/4 cups flour
1 tablespoon baking powder
1/4 teaspoon salt
1/2 cup milk

Directions:
Arrange strawberries and rhubarb in bottom of greased 9 x 13 inch glass baking dish. Add marshmallows and 3/4 cup sugar. Thoroughly cream shortening and 1 cup sugar. Add eggs and beat thoroughly. Add sifted dry ingredients alternately with milk. Pour over strawberries and rhubarb. Bake for 1 hour at 350. Cool for 5 minutes. Loosen edge with knife. Invert serving plate or attractive, durable tray over pan; turn cake upside down and remove pan. Serve with whipped cream.