Grilled Porterhouse with Brown Butter and Horseradish

Meet the most memorable steak you'll ever slice. It's a riff on Tuscany's "bistecca alla Fiorentina", a grilled porterhouse that is traditionally topped with arugula and a splash of olive oil. We added crunchy celery and briny olives to punch up the greens, tossed it all with lemon juice for brightness, and swapped the oil out for a drizzle of garlicky brown butter. A grating of horseradish serves as the flavor-packed final touch.

By Lauryn Tyrell
Martha Stewart Living, June 2020

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Credit: Christopher Testani

Recipe Summary

prep:
25 mins
total:
30 mins
Servings:
4
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Ingredients

Directions

  • Prepare grill for direct- and indirect-heat cooking. Pat steak dry and season generously with salt and pepper; let stand 10 minutes. Brush grates with oil and grill steak over high direct heat, turning occasionally, until a nice crust forms, 6 to 8 minutes a side.

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  • Transfer to indirect heat, cover, and continue to cook, flipping once more, until a thermometer inserted into thickest part (nearest but not touching bone) registers 125°F for medium rare, 8 to 10 minutes more.

  • Meanwhile, combine butter and garlic in a saucepan. Cook over medium-high heat (you can do this on the direct-heat side of the grill), swirling occasionally, until butter turns golden brown and gives off a nutty aroma, about 5 minutes. Remove from heat.

  • In a bowl, toss arugula, celery and leaves, and olives with lemon juice. Slice steak from bone, then carve against the grain into thick slices. Pile salad on top of steak; drizzle brown butter generously over both. Grate horseradish over top; serve.

Cook's Notes

For this recipe, ask your butcher to cut your porterhouse two inches thick. If you can only find 1-to-1 1/4-inch steaks, swap in two and grill them over direct heat for just three to four minutes a side for medium-rare.

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© Copyright 2022 Martha Stewart. All rights reserved. Printed from https://www.marthastewart.com 08/12/2022