To save time, you can substitute 1 can (13.4 oz) dulce de leche (caramelized sweetened condensed milk) and skip step 1.
Store brownies in the refrigerator up to 3 days. They taste even better the longer they sit!
Dulce de leche is nice to have on hand for making these brownies. Also try it drizzled on dessert pizza or ice cream, or use it to make frosting.