Israeli Cauliflower Steaks with Labneh

Name: Israeli Cauliflower Steaks with Labneh
Prep time: 20 min
Cook time: 40 min
Total time: 1 h
Cuisine: Asian, Middle Eastern
Ingredients: 2 small (1½ pounds each) cauliflowers, halved and leaves trimmed; ¼ cup vegetable stock; 2 tablespoons unsalted butter, melted; ½ teaspoon granulated sugar; Pinch red pepper flakes; Kosher salt, to taste; 2 vine-ripe tomatoes, halved; 1 tablespoon olive oil; 1 garlic clove, finely grated; Pinch cumin seeds; Kosher salt, to taste; 2 tablespoons unsalted butter, melted; 1 tablespoon minced preserved lemon; 1 teaspoon almond flour; 1 cup labneh; 4 teaspoons za'atar; Toasted slivered almonds, for garnish; Chopped parsley, for garnish; Flaky sea salt, for garnish