50g lactose free butter, melted
1½ kg small Maris Piper potatoes, skin on
4 bay leaves, torn in half
300ml lactose free double cream
3 thyme sprigs, leaves picked
Serves - 4
Heat oven to 170C/150C fan/gas 5. Grease a medium-sized gratin dish (a round or oval one about 22cm wide is ideal) with a little of the lactose free butter.
Slice the potatoes into very thin rounds – a mandolin or the sharp slicing blade of a box grater is good for this.
As you slice, stack the potatoes in piles and pack them into the dish starting from the outside, building a trail around the dish and then into the middle.
You want all the potatoes standing on their edges like dominoes. Slip the bay leaves between some of the slices.
Drizzle the lactose free cream and the rest of the lactose free butter over the potatoes, then sprinkle the thyme over the top.
Season well and cook for 1 hr until the potatoes are tender and cooked through, then turn the oven up to 200C/180C fan/gas 8 for 10-15 mins to crisp up the top of the potatoes.
Recipe adapted from: Good Food