- [Sheri] I'm Sheri Castle. Next time on "The Key Ingredient," strawberries take center stage. - Unlike some fruits, strawberries, once you pick them, they do not continue to ripen. [upbeat music] - From easy tiramisu trifles to swoon-worthy strawberry pretzel ice box salad. So look at these gorgeous, fresh strawberries. This is the key ingredient to this great recipe. [upbeat music]