Piquant Pulled Pork

Ingredients

• Spice Rub:
• 6 tablespoons light brown sugar
• 1 tablespoon garlic powder
• 1 tablespoon kosher salt
• 2 teaspoons freshly ground black pepper
• 2 teaspoons ground cumin
• 2 teaspoons smoked paprika
• Brine:
• 1/4 cup kosher salt
• 4 cups cold water
• 1/4 cup freshly packed light brown sugar
• 1 medium red onion, sliced
• 3 cloves garlic, minced
• 3 bay leaves
• 6- to 8-pound bone-in pork shoulder (Boston butt) roast
• 3 tablespoons yellow mustard
• 1/3 cup Sriracha
• 1/2 cup cold water