Chocolate Crunch Truffles
["1 pkg. semi-sweet chocolate chips (12 oz.)", "1/2 c. (1 stick) butter, softened and cut in chunks", "2 Tbsp. orange liqueur", "1 1/2 tsp. grated orange peel", "7 chocolate sandwich cookies", "cocoa powder"]
["In a medium saucepan over very low heat, melt chocolate, stirring constantly; remove from heat.", "Add butter, stirring until melted; stir in liqueur and orange peel, if desired.", "Transfer to a medium bowl; cover and refrigerate until mixture is fudge-like, about 30 minutes."]
["semi-sweet chocolate chips", "butter", "orange liqueur", "chocolate sandwich cookies", "cocoa"]