Ingredients

1 kilo beef sirloin (cut into chunk cubes)
6 medium potatoes (quartered)
Pinch of salt & pepper
?-cup pork fat (julienne)
1-cup tomato puree
1-cup beef stock
4 onions (quartered)
2 tablespoons olive oil
? -cup vinegar
2 pieces red bell pepper (quartered)
2 bay leaves

Directions

Make an incision on each beef chunks and insert pork fat.

In a casserole, place beef, bay leaves, vinegar, tomato puree, salt & pepper and beef stock.

In medium heat, allow simmering until beef is tender.

Add in potatoes, onions, and bell pepper.

When potatoes are fork-soft and sauce has thickened, stir in olive oil.