Authentic Chicken Adobo

Step 1
Combine vinegar, soy sauce,1 head garlic, bay leaves, garlic powder, black pepper, and 1 1/2 teaspoons annatto powder in a large bowl. Add chicken, stir to coat with marinade, cover, and refrigerate for at least 4 hours.

Step 2
Remove chicken from the marinade and pat dry. Reserve the marinade.

Step 3
Heat 2 tablespoons vegetable oil in a large skillet over medium-high heat. Cook chicken in the hot oil until browned, about 4 minutes per side. Remove skillet from heat.

Step 4
Heat 1 tablespoon vegetable oil in a small skillet over medium heat. Cook and stir 1 head garlic until browned, about 3 minutes. Add 1 1/2 teaspoons annatto powder; simmer for 3 minutes.

Step 5
Pour annatto mixture over chicken and add reserved marinade. Bring to a simmer, cover, and cook until chicken is tender, about 45 minutes. Uncover and cook until sauce has reduced slightly, about 10 minutes.