Creating Authentic Filipino Chicken Adobo is straightforward if you follow these simple steps:

1. Marinate the Chicken: In a bowl, combine the chicken thighs, soy sauce, and crushed garlic. Let it marinate for at least 30 minutes. If time allows, marinating overnight in the fridge enhances the flavor.

2. Sauté Aromatics: In a large skillet or pot, heat the vegetable oil over medium heat. Sauté the sliced onion until it’s soft and translucent.

3. Brown the Chicken: Add the marinated chicken to the pot, including the marinade, and sauté until it turns slightly golden brown on all sides.

4. Add Liquids and Spices: Pour in the vinegar, bay leaves, and black peppercorns. Do not stir yet; let it boil for 3-5 minutes to cook off the strong vinegar taste.

5. Simmer: After boiling, add 1 cup of water, stir the mixture well, and bring it back to a simmer. Cover and let it cook for about 30-40 minutes on low heat, stirring occasionally.

6. Adjust Flavor: Taste the sauce and adjust for salt or sugar if desired. If you prefer a thicker sauce, leave the lid off for the last 10 minutes to reduce.

7. Serve: Once the chicken is tender and the flavors have melded together, remove from heat.