Wash the chicken and boil it with the onion and salt, so it is not completely cooked yet to avoid falling apart.
Drain and place in a large pot the vegetable oil and butter (or margarine) to heat, then add the chicken to brown.
Meanwhile, brown the chili in another pan, taking extreme care not to burn the chili, as it will become bitter.
Blend the chili, garlic, tomato, and vinegar with some chicken broth, adding broth until you achieve a smooth sauce but still slightly thick.
In the meantime, check the chicken, it should be lightly browned now; add the sauce we just made to the pot, along with the chicken broth cube, salt, and pepper to taste.
After adding the sauce, let it simmer for about 10 minutes until we have a thick sauce and the chicken is well cooked.
Nutritional Information
* * Information per 100g serving, percentage of daily values based on a 2,000 calorie diet.
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