Preheat the oven to 425°F and dust two baking sheets with flour. Dust a work surface with flour. Divide the pizza dough into two smaller dough balls. Stretch or roll each dough ball into a 9-inch circle and transfer to the prepared baking sheets.

Spread each dough circle with ¼ cup barbecue sauce, leaving a ½-inch rim around the edge. Top each with the chopped chicken, then the mozzarella cheese, and Gouda cheese. Scatter the sliced red onion across the top of each.

Bake the pizzas until they are browned and crispy around the edges and the cheese is bubbling in the center, about 15-20 minutes.

Remove the pizzas from the oven and sprinkle each chopped cilantro.

Slice each pizza into 6 pieces and serve.