Empty meatball in a large microwave safe bowl. Cover with a lid or plate. Microwave for 4 minutes.
Meanwhile, in a medium saucepan, begin heating entire jar of Sriracha BBQ sauce on low, stirring occasionally.
Remove bowl of meatballs from microwave. Bowl will be hot, handle carefully. Add meatballs to saucepan and stir, coating meatballs on all sides with sauce. Continue to heat on low, about 3 minutes until bubbly.
Empty meatballs and sauce into a serving bowl. Garnish with chives and serve with toothpicks.