GRATIN OF CELERY ROOT AND POTATO
Steps:
- Preheat the oven to 375 degrees F.
- Slice the potatoes into 1/4-inch-thick rounds. Peel the celery root and cut into 1/4-inch-thick slices to resemble the potatoes.
- Butter a heavy oval casserole dish. Layer the potatoes in the bottom of the dish, followed by the butter and then a layer of celery root. Sprinkle with sea salt. Top with a layer of half of the cheese. Repeat with the remaining potato and celery root. Top with the cream and then the remaining cheese.
- Bake until deep golden brown, about 1 hour.
POTATO AND CELERY ROOT GRATIN WITH CAPER BROWN BUTTER
This is the perfect side dish to a Sunday roast or winter spread. Cutting the vegetables into batons as opposed to thinly slicing them lends a wonderful texture to the dish, and it looks pretty funky too. If you can't find celeriac (celery root), then swap it out for an equal amount of Yukon Gold potatoes or similar semi-waxy potatoes. This is the kind of dish that tastes better as it sits, so feel free to serve it at room temperature if you prefer, adding the brown butter just before serving.
Provided by Yotam Ottolenghi
Categories casseroles, main course, side dish
Time 2h30m
Yield 4 to 6 servings
Number Of Ingredients 16
Steps:
- Heat the oven to 375 degrees Fahrenheit/180 degrees Celsius.
- Add 2 tablespoons/30 grams of butter and all the oil to a medium (10-inch/26-centimeter) ovenproof sauté pan over medium-high heat. Once melted, add the onions and 1/2 teaspoon salt, turn the heat down to medium-low and cook, stirring occasionally, until onions are softened and have taken on a light coloring, about 15 minutes. Add the garlic and thyme leaves, and cook for another 3 minutes, stirring occasionally, until fragrant. Stir in the miso and wine, and cook until liquid is reduced by half, about 4 more minutes. Remove from the heat.
- In a large bowl, very gently toss together celery root (celeriac), potatoes and flour with 1 1/2 teaspoons salt and a generous grind of pepper. Stir in the onion mixture to coat, then transfer everything back into the skillet, piling the vegetables haphazardly, so that the batons are pointing in different directions. Pour in the stock. Lightly grease a piece of foil with a little oil, then tightly cover the pan (oiled side down) and bake for 1 hour, or until the vegetables have cooked through.
- Remove the foil, and turn the oven temperature up to 450 degrees Fahrenheit/210 degrees Celsius. Sprinkle over the Gruyère and return the dish to the oven for 30 minutes, or until nicely browned on top, rotating the dish halfway. Leave to settle for at least 20 minutes while you make the brown butter (beurre noisette).
- Add the remaining butter and the thyme sprigs to a small saucepan, and place it over medium heat. Once melted, cook for 3 to 5 minutes, stirring occasionally, or until it starts to smell nutty (add more or less time if necessary). Add the capers (carefully, as they might spit) and cook for 4 more minutes, or until they darken and burst. Off the heat, stir 1 tablespoon lemon juice from 1 lemon, chives and another good grind of pepper.
- Pour the caper brown butter all over the top of the gratin and serve warm, with the remaining lemon sliced into wedges to squeeze alongside.
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