Step 1

Dump the crushed pineapple with its juice in a medium saucepan.

Step 2

Add in the strawberry Jell-O and stir together.

Step 3

Bring to a boil over medium-high heat.

Step 4

Remove pan from the heat and set it aside to cool.

Step 5

When the pineapple and Jell-O mixture has cooled to room temperature, add the buttermilk and stir together until well combined.

Step 6

Fold in the Cool Whip.

Step 7

Pour into a decorative Jell-O mold and refrigerate until set.