Confetti Giardiniera

Ingredients

• 3 jalapeno peppers, cut into 1/4-inch dice
• 1 green bell pepper, cut into 1/4-inch dice
• 1 yellow bell pepper, cut into 1/4-inch dice
• 1 small onion, cut into 1/4-inch dice
• 1 celery rib, cut into 1/4-inch dice
• 1/2 medium carrot, cut into 1/4-inch dice
• 1/2 small cauliflower, cut into 1/4-inch florets
• 1/4 cup plus 2 tablespoons kosher salt
• 3/4 cup apple cider vinegar
• 1/2 cup canola oil
• 2 garlic cloves, minced
• 1 teaspoon minced oregano leaves
• 1/2 teaspoon crushed red pepper
• 1/4 teaspoon mustard seeds
• 1/4 teaspoon celery seeds
• 1/4 teaspoon freshly ground pepper