Authentic Cuban Roast Beef

Ingredients:
4 oz ham, smoked, chopped fine
4 oz bacon, chopped fine
8 oz onion, minced
1 oz capers, minced
1 garlic clove, minced
2 oz green olives, coarse chop
1 tb green chiles, minced
3 lb eye round roast
salt
pepper
2 oz bacon fat
8 oz stock
4 oz tomato sauce
1 tb vinegar

Directions:
Preheat oven to 350 degrees F.
Mix the first 7 ingredients to make a stuffing. Make an incision
1 1/2" to 2" deep along the length of the roast Stuff the stuffing
into the incision. Salt and pepper the roast.
Brown the roast on all sides in bacon fat in a large heavy casserole
Add all the rest of the ingredients and cook in the oven for 2 1/2
hours or until the meat is very tender. Check once or twice to
make sure that the liquid is not boiling away.
Add water or unsalted stock as necessary.