Prep the ingredients: Start by slicing the strawberries and cutting the pound cake or angel food cake into bite-sized pieces so everything is ready to assemble.
Make the pudding: Prepare the vanilla pudding according to the package instructions, then let it set slightly so it’s thick and creamy for layering.
Layer the parfait cups: In each parfait cup, begin with a layer of cake, followed by pudding, sliced strawberries, another layer of cake, then blueberries, and finish with a generous layer of Cool Whip.
Add the finishing touch: Top each parfait cup with extra strawberries and blueberries for a fresh, colorful look.
Chill or serve: Serve right away, or refrigerate the parfait cups for 1–2 hours to let the flavors blend and the dessert fully set.