Preheat oven to 400 degrees. Use an 11 x 13 x 9 inch pan. Smash pretzels, small pieces, not crumbs (makes 2 cups). Mix 3 tablespoons sugar, add 3/4 cups softened butter. Spread into bottom of pan, bake 10 minutes. Let cool.

Cream the sugar and cream cheese. Fold in Cool Whip. Spread over cooled crust. Refrigerate. Make Jello with 2 cups of boiling water. Add frozen strawberries. Refrigerate for 10 minutes, then spoon over crust. Refrigerate overnight.