Remove the 1 whole pollo entero 3.5–4.5 lbs, sin menudencias from the Refrigerator 30–45 minutes before roasting to take the chill off. This helps it cook more evenly. Pat the 1 whole pollo entero 3.5–4.5 lbs, sin menudencias completely dry inside and out with paper towels — this is the single most important step for crispy skin.

Preheat your Oven to 425°F. If using a Roasting Pan with a rack, place the rack inside the pan.

In a small Mixing Bowl, mix the softened 4 tbsp mantequilla sin sal ablandada a temperatura ambiente with the 2 minced 4 dientes ajo 2 picados, 2 machacados cloves, 1 tbsp romero fresco finamente picado, 1 tbsp hojas de tomillo fresco finamente picadas, 1 tbsp perejil fresco de hoja plana finamente picado (if using), 1½ tsp 1 ½ tsp sal kosher para la mezcla de mantequilla, and 1 ½ tsp sal kosher para la mezcla de mantequilla until well combined.

Gently loosen the skin over the 1 whole pollo entero 3.5–4.5 lbs, sin menudencias breasts and thighs by sliding your fingers underneath, being careful not to tear it. Push about half of the herb 4 tbsp mantequilla sin sal ablandada a temperatura ambiente under the skin and spread it evenly. Rub the remaining 4 tbsp mantequilla sin sal ablandada a temperatura ambiente all over the outside of the 1 whole pollo entero 3.5–4.5 lbs, sin menudencias.

Season the cavity generously with 1 tsp 1 ½ tsp sal kosher para la mezcla de mantequilla. Stuff the cavity with the 1 whole limón cortado por la mitad halves (squeeze them slightly first), smashed 4 dientes ajo 2 picados, 2 machacados cloves, and a few sprigs of fresh 1 tbsp hojas de tomillo fresco finamente picadas or 1 tbsp romero fresco finamente picado if you have extras.

Drizzle the 1 tbsp aceite de oliva over the 1 small cebolla amarilla pequeña cortada en cuartos, 3 stalks apio cortado en trozos de 2 pulgadas, and 3 whole zanahorias peladas, cortadas en trozos de 2 pulgadas pieces (if using) and scatter them in the bottom of the Roasting Pan. They act as a natural roasting rack and build flavor in the drippings. Place the 1 whole pollo entero 3.5–4.5 lbs, sin menudencias breast-side up on top of the vegetables (or on the rack).

Tie the legs together with Kitchen Twine and tuck the wing tips under the body. This helps the 1 whole pollo entero 3.5–4.5 lbs, sin menudencias cook evenly and keeps the shape tidy.

Roast the 1 whole pollo entero 3.5–4.5 lbs, sin menudencias at 425°F for 15 minutes to get the skin browning, then reduce the heat to 400°F and continue roasting. Plan for about 15–17 minutes of total cook time per pound. A 4 lb 1 whole pollo entero 3.5–4.5 lbs, sin menudencias will take approximately 60–70 minutes total.

The 1 whole pollo entero 3.5–4.5 lbs, sin menudencias is done when a Meat Thermometer inserted into the thickest part of the thigh (without touching bone) reads 165°F. The juices should run clear when you pierce the thigh. If the skin is browning too fast, tent loosely with Aluminum Foil.

Transfer the 1 whole pollo entero 3.5–4.5 lbs, sin menudencias to a Cutting Board and let it rest, uncovered, for at least 10–15 minutes before carving. This allows the juices to redistribute — do not skip this step. The internal temperature will continue to rise a few degrees as it rests.

Carve the 1 whole pollo entero 3.5–4.5 lbs, sin menudencias by first removing the legs and thighs, then the wings, and finally slicing the breast meat. Serve with the pan drippings spooned over the top, and the roasted vegetables on the side.