Microwave Fudge
["1/2 c. (1 stick) butter", "1/2 c. cocoa", "1 (16 oz.) box powdered sugar", "1 Tbsp. vanilla", "1/4 tsp. salt", "1/4 c. milk", "1 c. chopped nuts (optional)"]
["In 1 1/2-quart microwave dish, stir together sugar, cocoa, salt, milk and vanilla.", "(It will be stiff.)", "Top with butter (sliced).", "Microwave on High for 2 minutes.", "Stir until smooth. Blend in nuts."]
["butter", "cocoa", "powdered sugar", "vanilla", "salt", "milk", "nuts"]