Brownie Trifle
["1 (19.8 oz.) pkg. fudge brownie mix", "1/4 c. praline or coffee flavored liqueur (optional)", "1 (3.5 oz.) pkg. instant chocolate mousse mix", "8 (1.4 oz.) toffee flavored candy bars, crushed", "1 (12 oz.) container frozen whipped topping, thawed", "chocolate curls (garnish)"]
["Prepare brownie mix and bake according to package directions in a 13 x 9-inch pan.", "Prick top of warm brownies at 1-inch intervals, using a meat fork and brush with liqueur, if desired.", "Let cool and crumble.", "Prepare chocolate mousse according to package directions, omitting chilling.", "Place half of crumbled brownies in bottom of 3-quart trifle dish.", "Top with half of mousse, crushed candy bars and whipped topping.", "Repeat layers with remaining ingredients, ending with whipped topping.", "Garnish, if desired.", "Chill 8 hours. Yields 6 to 8 servings."]
["brownie mix", "praline", "instant chocolate mousse mix", "toffee", "frozen whipped topping", "chocolate curls"]