Sous Vide Giardiniera

Ingredients

• 2 cups white wine vinegar
• 1 cup water
• 1/2 cup ultrafine sugar
• 3 tablespoons kosher salt
• 1 tablespoon whole black peppercorns
• 1 cup cauliflower, cut into 1/2-inch pieces
• 1 bell pepper, stemmed, seeded, and cut into 1/2-inch pieces
• 1 cup carrots, cut into 1/2-inch pieces
• 1/2 white onion, thinly sliced
• 2 serrano peppers, stemmed, seeded and cut into 1/2-inch pieces