Clean the chicken, add salt inside and outside (reserve)
Chop the leaves of parsley, basil, coriander, and garlic cloves, add salt and pepper. Reserve the steam without leaves to create a bed for the chicken.
Cut the cold butter into cubes and reserve a bit of butter around 2 Tablespoons of butter for the end.
In a bowl mix the chopped herbs, garlic, cold butter, salt, and pink peppercorn. Proceed to fill the pocket below the chicken skin with the mix of herbs. Add herbs inside the chicken as well.
According to the size of the chicken cut the lemon in half and place it inside the chicken or use the whole lemon, in this case, pick the lemon with a knife.
In a small bowl mix 2 tablespoons of melted butter with 2 tablespoons of dijon mustard, stir, and brush it all over the chicken skin.
Tie the chicken legs with kitchen string.
Cook in preheated oven at 180 deg°C (option top-bottom, fan) for 30 minutes and flip it, cook for another 15-20 minutes approx. or 200deg°C (traditional oven).
The chicken is done when you slightly cut it and the juice run clear, the meat looks white, not pink.