Easy Chocolate Fudge
["1 large can Pet milk", "4 1/2 c. sugar", "3 (6 oz.) pkg. chocolate chips", "1 c. butter", "2 tsp. vanilla"]
["Heat milk and sugar until it boils, stirring constantly (about 7 minutes).", "Cool well.", "Add chocolate chips and butter.", "Beat with electric mixer until smooth.", "Stir in vanilla.", "Pour into greased, glass casserole dish. Cut into squares when totally cool."]
["Pet milk", "sugar", "chocolate chips", "butter", "vanilla"]