01 -
Set the oven temperature to 220°C (425°F) to prepare for roasting.
02 -
Pat the whole chicken dry with paper towels. Season generously with salt and black pepper both inside and out.
03 -
Insert the large bunch of thyme, halved garlic head, and lemon halves into the cavity of the chicken.
04 -
Place the onion chunks, carrot pieces, and fennel wedges at the base of a roasting pan. Toss them with olive oil, salt, and black pepper until evenly coated.
05 -
Lay the seasoned chicken on top of the prepared vegetables in the roasting pan.
06 -
Brush the chicken skin thoroughly with melted butter and sprinkle evenly with 20 fresh thyme sprigs.
07 -
Roast the chicken in the preheated oven for approximately 15 minutes per 450 g, or until a meat thermometer inserted into the thickest part of the thigh registers 74°C (165°F).
08 -
Remove the chicken from the oven and let it rest uncovered for 10 to 15 minutes to allow juices to redistribute before carving.
09 -
In a saucepan over medium heat, melt 3 tablespoons of butter. Whisk in the flour and cook for 1 minute. Gradually add chicken broth while whisking until smooth. Simmer until thickened, then season with salt and pepper. Serve alongside the chicken.