OPTIONAL BUT RECOMMENDED: Break up some extra pretzels & sprinkle a few extra chocolate chips on top so you can see all the colors & have crunchy pretzels above the condensed milk.
Bake at 350˚F for 20-30 min until lightly brown. Let cool completely before cutting & serving.
Notes
*They now sell caramel bits at the store near the chocolate chips! So much easier than unwrapping & cutting up caramel squares. I would try 1 cup of caramel bits if you aren't using the squares.