Shaved Cauliflower and Radicchio Salad

Ingredients

• 1⁄4 cup fresh lemon juice
• 1⁄4 cup honey
• 2 tbsp. Aleppo pepper, plus more
• 2 tbsp. fresh orange juice
• 2 tbsp. olive oil
• Kosher salt, to taste
• 1 1⁄2 cups baby arugula
• 3⁄4 cup golden raisins
• 1⁄2 cup pistachios, toasted
• 1⁄4 cup packed parsley leaves
• 3 stalks celery, thinly sliced
• 1 head radicchio, thinly sliced
• 1⁄2 head cauliflower (about 1 lb.), trimmed and thinly shaved using a mandoline