Step 1In a medium bowl, whisk French’s Sweet Buffalo Mustard with 3 tablespoons water. In another medium bowl, combine ground beef, ground pork, bread crumbs, chives, Parmesan, egg, garlic powder, salt, and pepper.

Step 2Scoop meatball mixture into 20 small balls, about 2 tablespoons each. Using your hands, flatten each ball and press one cube mozzarella into the center, then seal meat tightly around cheese. Repeat with remaining balls and mozzarella.

Step 3In a medium high-sided skillet over medium-high heat, heat oil. Add meatballs and cook, turning every few minutes, until deeply golden all over and cooked through, about 8 minutes.

Step 4Using tongs, transfer meatballs to the bowl with buffalo mustard mixture and toss to coat. Transfer meatballs to a serving platter.

Step 5Drizzle meatballs with blue cheese dressing and garnish with more chives. Serve with celery and carrot sticks.