This molletes is really more something you commit to memory than it is a recipe. It's just refried beans on toast smothered with cheese and broiled until bubbly. Essentially Mexican grilled cheese.
*What is chihuahua cheese?
A Mexican semi-soft cheese made from cow's milk, queso Chihuahua has a semi-firm texture with a pale yellow color. Its mild, buttery taste and meltability make it perfect for use in molletes. The author recommends substituting provolone if you can't find Chihuahua. A mix of mozzarella and white cheddar will also give you a good approximation of meltiness and flavor.