The spatchcock removes the backbone and flattens the bird. The result is a chicken that roasts in 45 minutes, browns evenly, and produces enough drippings to turn a pan of leeks and potatoes into something worth arguing over.

The compound butter is where the flavor lives. It goes under the skin – directly against the breast and thigh meat – and bastes the chicken from the inside as it roasts. The outside gets the rest. By the time it comes out of the oven, both layers are doing something.

What You Need

For the chicken:

• 1 whole chicken (3.5-4 lb), spatchcocked
• 4 tbsp unsalted butter, softened
• 4 garlic cloves, minced
• 1 tbsp fresh thyme leaves, chopped, plus a few whole sprigs
• 1 tsp lemon zest
• 2 tsp kosher salt
• 1/2 tsp freshly ground black pepper

For the vegetables:

• 1.5 lb Yukon Gold potatoes, cut into 1-inch chunks
• 2 large leeks, white and light green parts only
• 3 tbsp extra-virgin olive oil
• 1 tsp kosher salt
• 1 lemon, halved
• 1/2 cup dry white wine or chicken stock
• 2 tbsp fresh parsley, chopped (to finish)

How to Make It

Preheat the oven to 425°F. Pat the chicken thoroughly dry with paper towels – this is non-negotiable for crispy skin.

Make the compound butter. Mash together the softened butter, minced garlic, thyme, lemon zest, salt, and pepper until combined.

Get the butter under the skin. Working from the cavity end, slide your fingers under the breast and thigh skin to loosen it without tearing. Push about two-thirds of the butter under the skin, distributing it across the breasts and thighs. Rub the remaining butter all over the outside.

Prep the leeks. Halve lengthwise, then slice into 1/2-inch half-moons. Soak in cold water, agitate to release grit, then lift out (don’t pour – the grit stays at the bottom).

Build the base. On a large rimmed sheet pan or roasting pan, toss the potatoes and cleaned leeks with olive oil and salt. Spread in an even layer. Tuck a few thyme sprigs around. Pour the wine or stock around the edges.

Set the chicken on top, skin-side up. Squeeze the lemon over it, then nestle the spent halves into the vegetables.

Roast for 40-50 minutes, until the thickest part of the breast reads 155°F (it’ll climb to 165°F as it rests) and the thigh reads 170-175°F. The skin should be deeply golden and starting to crackle.

Rest for at least 10 minutes tented loosely with foil. Do not skip this. Give the vegetables a stir to coat in pan juices; if they need more color, slide them back into the oven while the chicken rests.

Carve and serve. Separate legs from thighs, remove and slice the breasts, halve the wings. Arrange over the leeks and potatoes, pour any resting juices over the top, scatter with parsley.

Notes

Spatchcocking: flip the chicken breast-down, use kitchen shears to cut along both sides of the backbone, remove it, flip back over, and press firmly on the breastbone until it cracks flat. Save the backbone for stock.

Dry-brine for better skin: if you have time, salt the chicken 4-24 hours ahead and leave it uncovered in the fridge. Skip the salt in the butter rub if you do this.

Wine pairing: a chilled Beaujolais or a white Burgundy.