01 - Preheat oven to 475°F. If using a pizza stone, place it in the oven while preheating.
02 - On a lightly floured surface, roll out pizza dough to a 12-inch circle. Transfer to a parchment-lined baking sheet or pizza peel.
03 - Toss cooked chicken with 2 tablespoons BBQ sauce in a small bowl until evenly coated.
04 - Spread 1/2 cup BBQ sauce evenly over pizza dough, leaving a 1/2-inch border for the crust.
05 - Sprinkle mozzarella and smoked gouda cheeses evenly over the sauce base.
06 - Distribute BBQ chicken pieces over the cheese, then scatter sliced red onions across the surface.
07 - Bake for 12–15 minutes until crust is golden brown and cheese is bubbly with slight browning.
08 - Remove from oven and let cool for 2 minutes. Sprinkle fresh cilantro over the top, drizzle with additional BBQ sauce if desired, then slice and serve immediately.