Maple-Walnut Fudge
["3 c. light brown sugar", "1 can (5 oz.) evaporated milk", "1/4 c. butter (room temperature)", "1 c. walnuts, chopped", "1 tsp. vanilla", "1 tsp. maple extract"]
["Line an 8-inch square pan with foil.", "Lightly grease foil."]
["light brown sugar", "milk", "butter", "walnuts", "vanilla", "maple"]