Cook the pork in a pressure cooker for 1 hour.

Place the tomatoes in a small pot with water and bring to a boil.

In a blender, add the garlic clove, bay leaves, cumin, cloves, and peeled tomatoes. Blend until smooth.

Slice the bolillo rolls in half without cutting all the way through. Spread warmed refried beans inside, add the pork, then dip the rolls in the sauce.

Serve and enjoy!