Begin by dissolving 3 ounces of strawberry Jell-O gelatin dessert in 1 1/4 cups of boiling water, stirring until the powder is completely dissolved. Once the liquid is ready, stir in 10 ounces of frozen strawberries along with 1 tablespoon of sugar and 1/8 teaspoon of salt. Transfer the mixture to the refrigerator and allow it to cool until it reaches a thickened consistency, which typically takes 30 minutes to an hour depending on your refrigerator temperature. This essential step prevents the mixture from soaking into the cake layers too quickly.
Once the Jell-O mixture has thickened appropriately, fold in 1/2 pint of whipping cream using a gentle hand to maintain the airy texture. In a 9-inch pan, begin layering by covering the bottom with torn pieces of angel food cake. Pour half of the strawberry mixture over this first cake layer, then add another layer of torn cake pieces. Top with the remaining strawberry mixture, ensuring the layers are distributed evenly.
Refrigerate the assembled dessert for 4 to 5 hours, allowing the layers to set firmly and the flavors to meld together. Just before serving, remove the dessert from the refrigerator and cover the top with a thin layer of 4 cups Cool Whip for a finishing touch. For the most visually appealing presentation, assemble this dish in a clear serving dish so the beautiful layered effect is visible from the sides, making it as much a feast for the eyes as it is for the palate.