Variations & Tips
Aunt Doris claims this takes exactly 3 ingredients and five minutes to prep. It disappears so fast at Sunday dinner I have never actually seen a lefto
For a slightly tangier pie, use crushed pineapple in its own juice (not heavy syrup) and add a small squeeze of fresh lemon over the pineapple before folding it into the whipped topping—this technically adds another ingredient, so keep it for times you’re not bragging about the “3 ingredients” part.
If you have picky eaters who don’t like noticeable fruit pieces, you can pulse the drained pineapple a few times in a food processor or chop it more finely before mixing so the texture is smoother.

For a firmer pie that holds up longer on a buffet table, you can partially freeze the whipped topping before mixing so the filling starts out extra cold, or pop the finished pie into the freezer for 20–30 minutes right before serving.
To dress it up for company, top each slice with a cherry or a little sprinkle of toasted coconut right before serving, again knowing you’re adding extras beyond the base three ingredients.

Food safety tips: Keep the pie refrigerated until serving, and return any leftovers to the fridge within 2 hours (within 1 hour if it’s very warm in the kitchen or if you’re serving outdoors in summer). Because this recipe uses a whipped topping that should stay cold, avoid leaving the pie out on the counter for long periods. If transporting to a potluck, pack it in a cooler with ice packs to keep it safely chilled.