Beef Rolls in the Style of the Princess (Bocadillos á la Princesa)

Ingredients

• good beef
• garlic, well ground
• cumin (cominos)
• pepper
• tocino (fatback/bacon), a little slice
• onion, chopped
• tomato
• maní (peanuts), well ground
• almonds, well ground
• walnuts, well ground
• salt
• butter
• onions, sliced in rounds
• tomatoes, seeded and cut in pieces
• 1/2 bottle good Priorato wine
• 1/2 bottle vinegar
• salt
• 1 oz grated chocolate
• parsley and hierba buena (mint) foliage

Instructions

1. Cut good beef into portions and pound each flat without breaking it up; lay them on a cloth over a board.
2. Rub with ground garlic and cumin, sprinkle with pepper, and place in each center a slice of tocino, chopped onion, tomato, and well-ground maní, almonds, walnuts, and salt.
3. Roll up each piece and tie with white thread.
4. Arrange in a porcelain-enameled pan over butter, sliced onions, seeded tomatoes, half a bottle of Priorato wine, half a bottle of vinegar, a little salt, and an ounce of grated chocolate.
5. Cover and cook over low heat about two hours, adding a little hot water if it dries; let it dry slightly and serve garnished with parsley and mint.