Serves 4-6.

Total time to prepare: 10 minutes

Cooking time: 65 minutes

Terry used a bunch of leftover stock for the slow-cooked lamb shanks, served with sweet potato gratin. The Ottolenghi recipe worked a treat. Foie-gras starter and a spot of cheese with one of the last bottles of 2011 Radford Dale Black Rock.

Ingredients

• • • 6 medium sweet potatoes
    • 5 tbsp coarsely chopped sage, plus extra for garnish
    • 6 cloves of garlic, crushed
    • 2 tsp coarse sea salt
    • ½ tsp freshly ground black pepper
    • 1 cup heavy cream

Instructions

1. 1. 1) Preheat oven to 400°F. Wash the sweet potatoes (do not peel them) and cut them into disks ¼ inch thick. A mandoline is best for this job but you could use a sharp knife.

      2) In a bowl mix together the sweet potatoes, sage, garlic, salt and pepper. Arrange the slices of sweet potato in a deep medium-size oven proof dish by taking tight packs of them and standing them up next to one another. They should fir together quite tightly so you get parallel lines of sweet potato slices (skins showing) along the length or width of the dish. Throw any remaining bits of garlic or sage from the bowl over the potatoes. Cover the dish with aluminum foil, place in the oven, and roast for 45 minutes. Remove the aluminum foil and pour the cream evenly over the potatoes. Roast, uncovered for a further 25 minutes. The cream should have thickened by now. Stick a sharp knife in different places in the dish to make sure the potatoes are cooked. They should be totally soft.

      3) Serve immediately, garnished with sage.

      *Note you can also use thyme in place of the sage, or use both.