Cut the beef into pieces. Peel and slice the onion. Peel and chop the garlic.
Mix the beef, garlic, bay leaves, and tomato paste. Let marinate for 4 hours.
Sauté the onion in hot oil. Add the pieces of meat (without the marinade) and brown them on each side for a few minutes.
To finish, add the marinade and the powder, cover with water to the appropriate level. Season with salt and pepper. Simmer on very low heat for 5 hours, stirring occasionally.
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