Double Chocolate Walnut Fudge - butter

Method

• Line a 9-in. square pan with foil, letting ends extend over sides by 1 in.; grease foil with butter.
• In a large heavy saucepan, combine semisweet chocolate chips and 3/4 cup milk over low heat. Remove from heat; stir in 1/2 cup walnuts and 1 teaspoon vanilla. Spread into prepared pan.
• In another saucepan, combine milk chocolate chips and remaining milk. Remove from heat; stir in remaining walnuts and vanilla. Spread over first layer. Refrigerate, covered, until firm, about 2 hours. Using foil, lift fudge out of pan. Remove foil; cut fudge into 1-in. squares. Store between layers of waxed paper in an airtight container.