Preheat the oven to 500 degrees.

Heat the olive oil in a skillet over medium heat, add the sliced onion and stir to coat. Reduce heat to medium-low and let cook, stirring frequently, until the onions are soft and golden (about 15 minutes).

In a small saucepan over medium heat, bring the balsamic vinegar to a boil, then reduce to a simmer and cook for about 10 minutes, stirring occasionally, until it is reduced and thickened. Remove from heat and stir in jam and sriracha.

Roll out the pizza dough on a silipat liner or sheet of parchment paper. Spread the balsamic sauce in a thin later over the crust, then sprinkle on the mozzarella, followed by the carmelized onions, the chicken, and the strawberries. Finish with the Parmesan cheese and bake for about 8 minutes, until the cheese is bubbling and the crust is golden-brown.

Remove carefully, sprinkle the basil leaves on top, and serve.