Preheat the oven to 180*C/350*F/gas mar 4.  Butter a baking dish large enough to hold the chicken legs really well.  Lay the chicken legs out in the dish in a single layer.  You want a dish large enough so that the chicken legs will only be partially submerged in the liquid.  Season the chicken drumsticks with salt, pepper and onion granules if using.  Whisk together the remaining ingredients until smooth.  Pour over the chicken drumsticks.  Bake in the pre-heated oven for 15 minutes, Remove and flip the legs over.  Return to the oven and bake for another 15 minutes.  Remove and flip the legs over.  Return to the oven and bake for a further 15 minutes.  (45 minutes in all)  Remove from the oven and spoon the sauce over all.  Increase the oven temperature to 220*C/425*F/gas mark 7.  Return the chicken to the oven for another 10 to 15 minutes, or until the sauce begins to caramelise on the legs.  Remove from the oven and let stand for about 5 minutes before serving.  Pass the napkins as these are finger licking delicious!