Step 1

Preheat oven to 400 degrees F.

Step 2

Combine softened butter, 1/3 cup sugar and crushed pretzels.

Step 3

Spread into an 8 x 8 inch baking dish; bake for 10 minutes or until bubbly. Set aside to cool. Crumble pretzel mixture.

Step 4

Blend softened cream cheese, drained crushed pineapple and 1/2 cup sugar until smooth. Fold in Cool Whip.

Step 5

Just before serving, stir in crumbled pretzel mixture.