Cauliflower Tartine With Romesco Sauce

Name: Cauliflower Tartine With Romesco Sauce
Ingredients: ½ small (1 pound, 3 ounces) head cauliflower; 2 tablespoons golden raisins; ½ cup water; ½ cup plus one tablespoon apple cider vinegar, divided; 2 cloves garlic, smashed, divided; 1 ⅛ teaspoon fine sea salt, divided; 2 tablespoons plus one teaspoon olive oil, divided; ⅓ cup roasted unsalted almonds; ⅓ cup drained roasted red bell peppers (from 1 [12 ounce] jar); 1 tablespoon canned tomato paste; ⅛ teaspoon freshly ground black pepper; ⅛ teaspoon crushed red pepper, plus more for serving; 2 (1-inch-thick) sourdough bread slices, toasted; Fresh flat-leaf parsley leaves and tender stems, for serving