Chocolate Mud Pie
["1 (8 1/2 oz.) pkg. chocolate wafers", "1/2 c. butter", "1 1/2 pt. softened coffee ice cream", "1/3 c. cocoa", "3 Tbsp. butter", "2/3 c. sugar plus 2 Tbsp. sugar", "1 1/3 c. whipping cream", "2 sq. semi-sweet chocolate for garnish", "2 Tbsp. sugar", "2 Tbsp. vanilla extract"]
["You will need a 9-inch pie plate."]
["chocolate wafers", "butter", "coffee ice cream", "cocoa", "butter", "sugar", "whipping cream", "semi-sweet chocolate", "sugar", "vanilla extract"]