Fudge gets texture from potato: potatoes cooked in the microwave oven give this fudge its unbelievably creamy, fudgey texture. The mellow flavor comes from Irish Crem liqueur, used in both the fudge and the icing. Use a pastry bag to pipe the icing or a spoon to drizzle it onto the fudge. The added bonux is that this fudge is low in fat. Designer Icing (recipe follows) Line an 8x8x2-inch pan with foil. extending foil over the edges of the pan. Butter foil; set the pan aside. Prick potato 2 or 3 times witha fork. Cook on 100% power (High) for 4-5 minute sor until tender, turning over once. Cool and peel. Mash potato (you should have one third cup). Add liqueur, stir until smooth. Set aside. In a 2 litre microwave-save casserole combine chocolate and margarine; cook, uncovered, on High for 1-2 minutes or until almost melted, stirring once. Stir until smooth. Stir potato mixture into chocolate mixture. Slowly stir in powdered sugar. Stir or knead until smooth. Press into the foil-lined pan. Score into thirty-six 1- 0.25-inch squares. Press a walnut piece into each square. Cover and chill until firm. Holding foil at edges, remove the fudge from the pan; cut into squares. Drizzle Designer icing over fudge. ~=>Designer Icing In a small microwave-save bowl, cook 1 Tablespoon margarine/butter on High for 45 seconds or until melted. Beat in one third cup sifted powdered sugar and enough Irish Creme liqueur (1-2 Tablespoon) to ake an icing of piping or drizzling consistency. Makes 36 pieces. Per serving: 91 calories, .5 gm protein, 15.7 gm carbohydrate, 3.1 gm fat, 0 mg cholesterol, 15.7 mg sodium. Calories from fat: 30 percent.