If you want to make this gluten-free, it’s pretty easy! Just swap out the all-purpose flour for a gluten-free flour blend—make sure it’s a one-to-one replacement blend designed for baking. The rest of the ingredients are naturally gluten-free, so no other changes are needed. You’ll still get that same delicious cake on top with the gooey caramel sauce underneath, and no one will even notice the difference!