Sweetened Whipped Cream Mash 1 pt of the strawberries, using a fork, and set aside. Combine the sugar and cornstarch in a 3 quart sauce pan. Stir in the water and mashed berries. Cook over medium heat, stirring constantly, until the mixture comes to a boil, then cook 2 minutes longer. Remove from the heat and stir in the food coloring. Cool to room temperature. Fold in the remaining 2 pts of strawberries and turn into the baked pie shell. Chill in the refrigerator at least 2 hours. To serve, top with puffs of sweetened whipped cream