Sous Vide Dry Rubbed Beef Back Ribs

Ingredients

• 1 (4-pound) rack beef back ribs
• Kosher salt and freshly ground black pepper
• 1/4 cup (59 ml) dark brown sugar
• 3 tablespoons (44 ml) smoked paprika
• 3 tablespoons (44 ml) ancho chili powder
• 3 tablespoons (44 ml) garlic powder
• 2 tablespoons (30 ml) onion powder
• 2 tablespoons (30 ml) mustard powder
• 1 tablespoon (15 ml) dried thyme