2/3 c. canned milk
1-2/3 c. sugar
1-1/2 c. (about 16 large) diced marshmallows*
1/2 c. coarsely chopped walnuts
1-1/2 c. semi-sweet chocolate chips
1 tsp. vanilla
Combine canned milk with sugar in saucepan; heat to boiling over medium heat. Cook 5 minutes, stirring constantly. Remove from heat, add marshmallows, nuts, chocolate and vanilla. Stir until marshmallows are melted. Pour into buttered 8" or 9" square pan. Cool, then cut into squares.
*3/4 c. marshmallow syrup or topping may be used in place of the diced marshmallows.