So magic bars should naturally be a little messy and a little bit gooey, but I've definitely seen those bars that are so gloppy, they just aren't fun to eat. u003cbr/u003eu003cbr/u003eTypically, that's because there's too much condensed milk in them. Luckily this recipe is perfectly balanced for one can (14 ounces) of condensed milk. This amount, in a 9-inch x 13-inch pan will still evenly coat the full graham crust for a nice creamy layer in the middle of your bars, but there won't be so much that they'll too gooey to enjoy.