chloe the one i do involves poaching the chicken in mixture of wine, lemon juice stock and water, then using the reduced liquid (about a cup, i half the recipe).
i saute vegies (leek, carrots, mushrooms, peas, celery etc..) in some butter first then add around 1/3 cup for flour cook for a few minutes then add the reduced stock, stir til thickend then add the chicken, for the tops i cheat and make a good creamy mash! easy as pie!!