Step 1

Whisk all of the ingredients together in a large bowl. Add the chicken breasts and cover with the marinade. Cover and refrigerate for 8 hours, or overnight. If you’re in a hurry, marinade for 1 hour minimum, though you won’t get as much flavor penetration.

Step 2

Heat a large saucepan to medium heat and add olive oil with onion and peppers. Cook about 5 minutes, or until everything softens.

Step 3

Add the garlic and cook another minute, until garlic becomes fragrant.

Step 4

Add remaining ingredients and stir until everything is combined.

Step 5

Bring to a boil, then reduce heat and simmer about 20-30 minutes.

Step 6

Process until smooth. If the sauce is too thick, add a ½ cup of water or more and continue to process to your preferred consistency. Serve the sauce right away, or let it sit awhile to allow the flavors to more fully develop.

Step 7

Heat your grill to medium-high heat and lightly oil the grates.

Step 8

Remove the chicken from the marinade and discard the marinade. Grill the chicken 5 minutes per side to get a nice sear.

Step 9

Baste on a few spoonsful of the barbecue sauce and continue to grill until you reach an internal temperature of 165 degrees F when measured with a meat thermometer.

Step 10

Remove from heat and let rest a couple minutes.

Step 11

Serve with extra bbq sauce.