14 oz. can sweetened condensed milk
1/4 cup lemon juice
2 cups mini marshmallows
16 oz. can whole berry cranberry sauce
20 oz. can crushed pineapple, drained
1/2 cup chopped walnuts
few drops of red food coloring, if desired
8 oz. tub Cool Whip, thawed
In large bowl, whisk together sweetened condensed milk and lemon juice. Stir in marshmallows, cranberry sauce, pineapple, nuts, and food coloring. Fold in Cool Whip.
Spoon into a 9 x 13 inch glass baking dish. Freeze until firm (4 hours or overnight). Cut into squares and serve.