1 family size brownie mix
1/4 c. Kahlua or coffee liqueur
3 (3.5 oz.) boxes Jello chocolate mousse
8 (1.2 to 1.4 oz. size) Heath candy bars
1 (12 oz.) container whipped topping

Bake brownies according to package directions; cool. Punch holes in brownies with a fork; pour Kahlua over brownies and set aside. Make Jello mousse according to directions. Break Heath bars into small pieces in food processor or by tapping them with a hammer (still in the wrapper). Crumble half of the soaked brownies and place in the bottom of a glass trifle dish. Cover with half of the mousse, layer with half of the candy, and then add half of the whipped topping. Repeat layers with the remaining ingredients.