This is a fabulous adaption of an Ottolenghi recipe by the food blog, Alexandra’s Kitchen. If you have a Le Creuset braiser it will help, as the shallow sides help caramelize the cauliflower steaks.The combination of the lemony yoghurt sauce under the cauliflower steaks and the walnut caper salsa on top is spectacular
For the salsa:
1/2 cup walnuts
¼ cup olive oil, plus more to taste
2 tbsp drained capers, patted dry
1/4 tsp crushed red pepper flakes, or more to taste
1/3 cup coarsely chopped parsley
1 tbsp dried currants
1 tbsp vinegar, such as white balsamic, sherry or red wine, plus more to taste
zest of 1 lemon
Kosher salt to taste
For the cauliflower:
1 small head of cauliflower
2 to 3 tablespoons grapeseed or olive oil
Kosher salt
For the yogurt sauce:
1 cup Greek yogurt, (I like Fage 5%)
1 tbsp fresh lemon, from about 1/2 a lemon
1/4 tsp kosher salt
parsley, optional
Make the salsa.
Preheat oven to 350°F.
Toast the walnuts on a small pan or rimmed baking sheet, until golden brown, 10 to 12 minutes. Let cool, then use your hands to break the walnuts into small-ish pieces. Set aside.
Increase oven temperature to 425° for roasting cauliflower.
Heat the oil and capers in a small saucepan over medium, swirling often, until capers burst and are golden brown and crisp, about 5 minutes. Carefully pour the oil and capers into a small heatproof bowl. Add the crushed red pepper flakes and currants. Let cool. Then, stir in the walnuts (leaving as much papery skin behind), parsley, vinegar, and lemon zest; season with salt. Taste.
If it tastes too sharp, add more olive oil by the tablespoon. (I almost always add 2 more tablespoons of oil.) If it needs more salt, add to taste.
Make the steaks.
Trim the cauliflower stem on the bottom to create a flat base. When I first made this, I trimmed away the greens, but now I like to keep the outer greens attached — they taste good roasted. Remove them if you wish.
Cut straight down through the center, then make another cut 1.5 inches away from the center on each side — you’ll likely get 2-3 steaks total. I used to save the cauliflower pieces that broke away for another day, and you definitely can do this, too, or you can sear and roast them right along with the steaks in the pan.
Heat the oil in one or two large skillets over medium-high. Add the cauliflower steaks and any florets/greens that broke away, if you wish. (If the steaks don’t fit in a single layer, you should use two pans or you won’t get a nice sear.)
Cook, gently lifting up cauliflower occasionally to let hot fat run underneath, until steaks are deep golden brown, about 3 to 5 minutes. Turn steaks and season with salt. Transfer skillet to oven and roast until cauliflower stems are fork-tender, 15-20 minutes.
Make the yogurt sauce:
Stir together the yogurt, 1 tablespoon lemon juice, and 1/4 teaspoon kosher salt. If you have leftover parsley from the bunch you purchased, and you think you might not use it anytime soon, chop it up finely and stir it in. Taste. Adjust seasoning to taste.
To finish: smear the yogurt sauce over a large platter. Top with the cauliflower steaks. Spoon the caper-yogurt sauce over top. Serve immediately or at room temperature.