Grilled Chicken With Spinach-Chive Pesto

⏲ ~36 min total · prep 16 · cook 7 · 4 servings

Lunch⏱ 45 min total🔥 9.2g net carbs⚡ ≈512 kcal/serving~0% of calories from carbs

By the KFI Test Kitchen · Tested & approved by Jason Lieu, KFI recipe editor

Published Sep 15, 2026 · Updated Sep 15, 2026

Grilled Chicken With Spinach-Chive Pesto

Ingredients

Instructions

  1. Pulse the walnuts and garlic clove in a food processor until crumbly. Add the spinach and chives and pulse 8-10 times, until roughly chopped but not a puree.
  2. With the machine running, stream in the 1/2 cup olive oil until the pesto is loose and glossy. Stir in the Pecorino and lemon juice, season with 1/2 teaspoon each salt and pepper, and let it sit 10 minutes while the grill heats — the chives mellow as it rests.
  3. Rub the chicken thighs with the 2 tablespoons olive oil, then season all over with the garlic powder and remaining 1 teaspoon salt and 1/4 teaspoon pepper; let them sit at room temperature 15 minutes.
  4. Set up a two-zone fire: hot coals or lit burners on one side only, about 450°F over direct heat. Lay the thighs skin-side down over the direct side, lid closed, 6-8 minutes, until the skin is deeply charred in spots and releases without tearing.
  5. Move the thighs to the cool side, skin-side up, close the lid, and cook 12-15 minutes more, until the thickest part reads 165°F.
  6. Rest the thighs 5 minutes, then spoon the spinach-chive pesto generously over each one; serve the rest alongside.

Why this recipe works

Tips for making this recipe well

Toast the walnuts first

The ingredient list says toasted, and it shows in a pesto this green. Five minutes in a dry skillet until they smell nutty deepens the whole sauce. Raw walnuts go flat next to all those chives.

Wait for the skin to release

Crisped skin lets go of the grate on its own. If a thigh fights you at the 6-minute mark, give it another minute rather than pulling. Torn skin leaks fat and loses the crunch you grilled for.

Lid down on the cool side

Indirect heat with the lid closed works like an oven, which is how the thickest part climbs to 165°F without more charring. Peek rarely. Every lift dumps the heat you're banking.

Taste the pesto after it rests

The recipe seasons with half a teaspoon each of salt and pepper and leaves it there. Pecorino is salty on its own and the mix concentrates as it sits. Taste after the 10-minute rest before adding anything.

Pass the extra at the table

Spoon pesto over each thigh and set the rest in a small bowl. The olive oil separates slightly as it sits, which is normal. A stir brings it back together.

Serving suggestions

Set the thighs on a warm platter, spoon pesto over each, and put the remaining bowl on the table for people who want more. Grilled zucchini or a tomato-cucumber salad sits well here and doesn't compete with the chives. The recipe runs 45 minutes, so start any side while the thighs finish on the cool side of the grill. Leftover pesto is worth guarding: it turns tomorrow's scrambled eggs or a plain grilled fish into something you'd order out.

Storage and meal prep

Refrigerate leftover thighs and pesto in separate containers for 3 to 4 days. The skin softens in the fridge no matter what; a few minutes in a 400°F oven or under the broiler brings back most of the crackle. The pesto keeps its color better with a thin layer of olive oil pressed over the top. Pesto also freezes for 2 to 3 months in small portions, though the green dulls a shade. Cold chicken pulled off the bone over dressed greens makes an easy next-day lunch.

Variations worth trying

Frequently asked questions

Why two zones instead of one?

Direct heat alone chars the skin before the bone-side meat reaches 165°F. The move to the cool side with the lid closed finishes the interior gently. It's the same logic as oven-finish searing, done on one grill.

Can I make the pesto ahead?

Yes, up to a day ahead. The top benefits from a thin film of olive oil to slow the darkening. The flavor actually softens in a good way after an hour, which is why the recipe builds in a 10-minute rest.

Do I need bone-in thighs?

Bone-in, skin-on is what the recipe is built around. Boneless thighs cook faster and dry out under the long lid-closed finish, and skinless pieces have nothing to crisp. The skin is doing half the work here.

My pesto turned dark on top. Is it bad?

That's oxidation, not spoilage. Chives and spinach darken where the sauce meets air. Stir it in or skim the darkened layer; it keeps 3 to 4 days refrigerated either way.

What internal temperature for the thighs?

165°F at the thickest part, checked near but not touching the bone. The recipe splits the cooking into 6-8 minutes over direct heat and 12-15 minutes indirect. The thermometer decides when it's done, not the clock.

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