Roast Pork with Tequila Mustard

Place the first seven ingredients into a large pot (meat, onion, garlic, salt, oregano, bay leaves, water) and cook over high heat until water evaporates, about 45 minutes (onions will look very dark, nearly burnt, at this point). Reduce heat to medium high. Add oil and brown pork all over. Reduce heat to medium low.

Add potatoes, broth, and tequila. Cover and cook for 20 minutes, until potatoes are tender. Remove pork and potatoes to a platter. Discard bay leaves. Stir mustard into the remaining liquid in the pot and process with an immersion blender to thicken and smooth. Blend in sour cream for flavor if desired. Slice pork and serve with the sauce and potatoes.