We start with a chicken clean of entrails, without traces of fat or feathers and we begin by washing it well, under a stream of cold water. We dry it thoroughly with absorbent paper. This step is very important, It has to be very dry for it to grill well and is juicy on the inside and crispy on the outside.
We take one of the onions and cut it into quarters. We are going to use two of them to fill the chicken, the other two are reserved for the garnish along with the second onion. We wash the lemon well and prick it with a lace over the entire surface, making sure to penetrate the skin well. We season the inside of the chicken well and we fill it with the lemon and the two quarters of onion.
In a small story we mix the pepper, the two types of paprika, the lemon juice and the extra virgin olive oil. Spread the chicken with the mixture, turning so that it remains well covered on all sides. If we want, we can tie it with twine, but this is totally optional.
Peel and cut the potatoes into regular pieces. We boil them in a saucepan with plenty of salty water for five minutes. We drain and the we place on a baking tray. Peel and cut the carrots and onion into strips (including the two quarters that we have reserved). We add them to the potatoes and add the white wine, the water and a drizzle of extra virgin olive oil.
We introduce the tray with the vegetables in the middle-lower part of the oven, pre-heated to 180 ºC. On this we place the rack and, on the rack, the chicken with the breasts up. We bake for an hour before turning very carefully (do not do like me who tore the skin, you can see it in the photo).
Bake for 30-45 more minutes or until the chicken reaches 74ºC inside. After the total roasting time, remove the chicken from the oven and we let it rest for a few minutes before carving and serve alongside the roasted vegetables.
During grilling, the juices from the chicken drip onto the vegetables, transferring their flavor. We can open the oven from time to time to stir and flip the vegetables and that they roast evenly. This will not affect the roast of the chicken.