Junior Mint Mousse
["2 Tbsp. unsweetened cocoa", "2 Tbsp. milk", "2 Tbsp. butter", "5 (1.6 oz.) pkg. Junior Mints", "1/2 tsp. vanilla", "1 container frozen whipped topping"]
["In small saucepan, dissolve cocoa in milk.", "Add butter and Junior Mints and stir over low heat until mixture is smooth. Transfer to bowl; cool slightly."]
["unsweetened cocoa", "milk", "butter", "vanilla"]