What does spatchcock mean?
Spatchcocking (also called butterflying) means removing the chicken’s backbone so the bird can lay flat. Flat chicken cooks faster and more evenly because the thick and thin parts are closer to the same height.
Do I need to brine the chicken?
No, the herb butter and a good seasoning of salt go a long way. If you want extra insurance, dry brine it: salt the chicken all over (about 1 teaspoon kosher salt per pound) and refrigerate uncovered for 8 to 24 hours. That also helps the skin crisp.
What oven temperature is best?
I like 450°F for crisp skin and speed. If your oven runs hot, smokes easily, or you are using convection, you may want to roast at 425°F (or keep 450°F but start checking early). The butter and Dijon can brown fast at high heat, which is delicious, but it is another reason to watch the last 10 minutes.
How do I know it is safely cooked?
Use an instant-read thermometer. For safety, the chicken should reach 165°F in the thickest part of the breast. In practice, you can pull it at 160 to 162°F and let carryover heat bring it up to 165°F as it rests. Thighs are usually best at 175 to 190°F, which makes dark meat tender.
Why put butter under the skin instead of on top?
Butter on top can slow browning. Under the skin, the fat melts and bastes the meat while the skin stays drier and crispier.
Can I do this without kitchen shears?
You can use a sharp chef’s knife, but shears are safer and easier. If you are doing spatchcock turkey, you already know: shears earn their keep.
My pan juices taste bitter. Why?
Usually it is from too much lemon pith or scorched garlic. Use only lemon zest and fresh juice, and keep garlic tucked in the butter or under the chicken where it is protected.
Does adding broth or water to the pan change anything?
A little liquid helps prevent drippings from burning (and cuts down on smoke), but it also makes the pan juices less concentrated and can soften any bits touching the pan. It is optional, and it is a great trade if you value an easier cleanup and a calmer oven.