Strawberry Shortcut Cake
["1 c. miniature marshmallows", "2 c. frozen strawberries (two 10 oz. pkg.)", "1 (3 oz.) pkg. strawberry flavor gelatin", "2 1/2 c. flour", "1/2 c. solid shortening", "1 1/2 c. sugar", "3 tsp. baking powder", "1/2 tsp. salt", "1 c. milk", "1 tsp. vanilla", "3 eggs"]
["Generously grease bottom only of a 13 x 9-inch pan.", "Sprinkle marshmallows evenly over bottom of pan.", "Thoroughly combine completely thawed berries and syrup with dry gelatin; set aside."]
["marshmallows", "frozen strawberries", "strawberry flavor", "flour", "solid shortening", "sugar", "baking powder", "salt", "milk", "vanilla", "eggs"]