This has been the best year for Jersey Royals I can remember in a long time. The potatoes are earthily flavoursome, and have a pleasing, waxy consistency. Buy them while you can. In a few weeks, many greengrocers will no longer have them, as the supermarkets hog the supplies.
Last night, we had chicken pieces roasted on a bed of sliced Jerseys, with rosemary, a whole head of garlic, and a quartered lemon. I sliced the Jerseys lengthways, about 50mm thick, and put them into a bowl of water. I rubbed them gently, to try to get rid of as much surface starch as possible. Even then, they can stick to the roasting tin; but it would be a shame to boil them first, losing more flavour.
I tossed the potatoes with olive oil, layered them in the tin, and scattered the rosemary, a whole head of garlic cloves, and the quartered lemon on top. (I did not squeeze the lemon - the acidity would have hindered the softening of the potatoes.) I rubbed a little oil over the chicken pieces, salted them, and placed them on top. I placed the tin in the oven for an hour and a quarter, turning the potatoes half way through.
We ate it with a garlic mayonnaise. Rather than use pungent, raw garlic, I removed one of the roasted cloves from the oven, and mashed that with my egg yolk and mustard.