public void Cook()
{
Bowl bowl = new Bowl();
Potato potato = GetPotato();
potato.Peel();
potato.Cut();
bowl.Add(potato);
Carrot carrot = GetCarrot();
carrot.Peel();
carrot.Cut();
bowl.Add(carrot);
// some code for boiling, etc
}
private Bowl GetBowl()
{
Bowl result = new Bowl();
// some code
return result;
}