Clean the vegetables. Then cook the chicken in 3/4 liter water with soup vegetables, onion, carrot, bay leaf, chicken stock and allspice grains until cooked. Then bonnet the chicken and cut it into small pieces.
Next, prepare a golden brown roux from the butter and flour and deglaze with the cooking stock. Add the capers. Season to taste with soy or Worcester sauce, a pinch of sugar and a little lemon juice. Finally, put the chicken pieces back into the sauce and warm up.