Ingredients:

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

Preparation:

# 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 thicken, stir in olive oil. 

Notes: