Pickled Crudités

Ingredients

• ["2 cups distilled white vinegar", "2 cups white wine vinegar", "1/3 cup sugar", "1/4 cup plus 2 teaspoons kosher salt", "8 bay leaves", "8 garlic cloves, smashed", "4 chiles de arbol", "2 tablespoons fennel seeds", "2 tablespoons coriander seeds", "1 tablespoon whole black peppercorns", "1 tablespoon yellow mustard seeds", "1 pound baby or small red-skinned sweet potatoes, peeled or unpeeled, cut lengthwise into spears", "1 pound brussels sprouts, trimmed, halved", "1 pound baby carrots, peeled, trimmed with 1/2\" green tops still attached