Pineapple Fluff

1 (1-ounce) package sugar free instant vanilla dry pudding mix

1 (15-ounce) can (2 cups)  crushed pineapple with juice

1 (12-ounce) container whipped topping, thawed, divided

In a medium bowl, combine pudding mix and pineapple with juice.

Fold in one-third whipped topping at a time and mix lightly. Refrigerate until pudding sets.