Dulce de Leche Apple Bars with Browned Butter Icing

Whenever I come across a recipe that includes the words "dulce de leche," I'm immediately intrigued. I'm a caramel lover, you see, and dulce de leche puts caramel to shame. It's infinitely more decadent and creamy, and it does magical things to baked goods too.The latest dulce recipe that captured my full- attention: Dulce de Leche Apple Bars with Browned Butter Icing.I've never made my own dulce