Black Forest Trifle
["4 1/2 c. milk, divided", "3 sq. unsweetened chocolate", "1/3 c. cornstarch", "1/2 c. sugar", "1/4 tsp. salt", "2 tsp. vanilla extract", "2 c. cookie crumbs", "1 (20 oz.) can cherry pie filling"]
["In a large saucepan, slowly heat 4 cups milk with the chocolate just until bubbles form around edge of pan.", "In a small bowl, combine cornstarch, sugar, salt and remaining milk; mix well. Gradually stir cornstarch mixture into hot milk; bring to boiling, stirring.", "Boil 1 minute, stirring constantly.", "Remove from heat. Add vanilla.", "Spoon one-third of the chocolate pudding into a 2-quart bowl or souffle dish.", "Top with one-third of the crumbs. Set aside 1/2 cup cherry filling.", "Gently spoon half of remaining cherry filling onto crumbs."]
["milk", "unsweetened chocolate", "cornstarch", "sugar", "salt", "vanilla extract", "cookie crumbs", "cherry pie filling"]