1. To make Sriracha BBQ Sauce, heat olive oil in medium saucepan over medium-high heat; add onion. Sauté onion until golden brown and tender. Add garlic; cook 30 seconds. Add remaining Sriracha BBQ Sauce ingredients. Bring to a boil; reduce heat to medium and cook until thickened, about 15 minutes. Let cool.
2. To make Sriracha Burgers, heat charcoal or gas grill to medium. Gently combine ground pork, ground beef, minced onion, hoisin sauce, sriracha sauce and ginger in bowl. Shape into 6 (1-inch thick) burgers. Grill burgers about 5 minutes per side until internal temperature reaches 160°F.
Place burgers on bottom toasted bun and spread with about 1 tablespoon cream cheese. Top with broccoli slaw mix and drizzle with Sriracha BBQ Sauce. Close bun and serve.