{"id":1590,"date":"2022-01-01T17:42:33","date_gmt":"2022-01-01T17:42:33","guid":{"rendered":"https:\/\/bhiggs.x10hosting.com\/foodie\/?p=1590"},"modified":"2024-02-09T21:34:50","modified_gmt":"2024-02-09T21:34:50","slug":"potato-tomato-gratin-with-horseradish","status":"publish","type":"post","link":"https:\/\/bhiggs.x10hosting.com\/foodie\/potato-tomato-gratin-with-horseradish\/","title":{"rendered":"Potato-Tomato Gratin With Horseradish"},"content":{"rendered":"
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<\/div>\n\t<\/g><\/svg><\/span> Print Recipe<\/a>\n\t\n\t\n<\/div>\n

<\/span>Potato-Tomato Gratin With Horseradish<\/span><\/h2>\n
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Traditional cream-based potato gratins might be scandalized to know that this lighter olive-oil–based version dares to call itself a gratin as well. While it might not have the over-the-top indulgence of the original, this approach is still plenty rich and delicious. Tomatoes add intensity and jammy sweetness, brightened by the pungency of that winter underdog, fresh horseradish. The generous snow-like dusting of tangy grated horseradish on top adds a sinus-clearing peppery zing to the dish. The knobby cream-colored root looks similar to a parsnip, and you can find it in the refrigerated section of well-stocked supermarkets\u2014though grated Parmesan would make a fine substitute. Serve the gratin as a side to a rich holiday meat like prime rib or simply on its own as a vegetarian main.<\/span><\/div>\n
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Servings: <\/span>4<\/span> servings<\/span><\/span><\/div>\n\n
Author: <\/span>Chistian Reynoso – Bon Appetit<\/span><\/div>\n\n\n

<\/span>Ingredients<\/span><\/h3>
  • Tbsp.<\/span> extra-virgin olive oil<\/span> divided; plus more for serving (optional)<\/span><\/li>
  • 1<\/span> large onion<\/span> thinly sliced<\/span><\/li>
  • 4<\/span> garlic cloves<\/span> thinly sliced<\/span><\/li>
  • 2\u00bd<\/span> tsp.<\/span> Diamond Crystal or 1\u00bc tsp. Morton kosher salt<\/span> divided<\/span><\/li>
  • 3<\/span> Tbsp.<\/span> drained prepared horseradish<\/span><\/li>
  • 1<\/span> Tbsp.<\/span> double-concentrated tomato paste<\/span><\/li>
  • \u00bd<\/span> tsp.<\/span> crushed red pepper flakes or 1 tsp. freshly ground black pepper<\/span><\/li>
  • 2<\/span> Tbsp.<\/span> thyme leaves<\/span> divided<\/span><\/li>
  • 1<\/span> cup<\/span> low-sodium vegetable or chicken broth or 1 tsp. Better Than Bouillon reconstituted in 1 cup water<\/span><\/li>
  • 1\u00bd<\/span> lb.<\/span> Yukon Gold potatoes<\/span> about 4 medium, scrubbed, sliced into \u00bc”-thick rounds<\/span><\/li>
  • 1\u00bd<\/span> lb.<\/span> plum tomatoes<\/span> 7\u20138, ends trimmed, sliced into \u00bc”-thick rounds<\/span><\/li>
  • 1<\/span> 2″\u20133″ piece fresh horseradish, peeled, or 1 oz. Parmesan, finely grated (for serving)<\/span><\/li>
  • Flaky sea salt<\/span><\/li><\/ul><\/div><\/div>\n

    <\/span>Instructions<\/span><\/h3>
    • Arrange a rack in middle of oven; preheat to 350\u00b0F. <\/span><\/div><\/li>
    • Heat 1 Tbsp. oil in a large skillet over medium-low. Add onion, garlic, and \u00bd tsp. Diamond Crystal or \u00bc tsp. Morton kosher salt and cook, stirring often, until onion and garlic are softened and translucent but without taking on any color, 5\u20137 minutes. Remove from heat and stir in prepared horseradish, tomato paste, and red pepper flakes, and 1 Tbsp. thyme leaves. Transfer to a large bowl.<\/span><\/div><\/li>
    • Combine broth and remaining 2 tsp. Diamond Crystal or 1 tsp. Morton kosher salt in a small bowl or measuring cup, stirring to dissolve salt; set aside.<\/div><\/li>
    • Add potatoes to bowl with onion mixture and toss to combine. Arrange groups of 4\u20135 tomato slices and 4\u20135 potato and onion slices in alternating stacks in a 2\u20132\u00bd qt. baking dish or medium cast-iron skillet so edges are aligned vertically, working your way around perimeter of dish before moving into center. The pieces should be very tightly packed; tuck leftover onion filling into any gaps.<\/div><\/li>
    • Pour reserved broth over vegetables and drizzle with 3 Tbsp. oil. Cover tightly with foil and bake until potatoes are tender and tomatoes are juicy, 40\u201350 minutes. Increase oven temperature to 425\u00b0, uncover baking dish, and continue to bake until liquid is reduced by about half, tomatoes are concentrated and jammy, and potato edges are golden brown and crisp, 30\u201345 minutes more. Let cool 15 minutes.<\/div><\/li>
    • Drizzle gratin with a little more oil if desired and sprinkle with sea salt and remaining 1 Tbsp. thyme leaves. Finely grate as much fresh horseradish over as you\u2019d like.<\/div><\/li><\/ul><\/div><\/div>\n
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