Sprinkle yeast over warm water in a small bowl and let stand for 5 minutes
In a mixer, combine flour and salt.
Drizzle olive oil into the mixer and mix until combined.
Pour in yeast/water mixture after it has proofed and mix until dough is formed.
Coat a large mixing bowl with olive oil and form dough into a ball and place inside. Cover bowl tightly with plastic wrap and set aside for 1-2 hours or in the fridge for 2+ hours.
Preheat oven to 500 degrees F.
Drizzle and spread olive oil over two baking sheets.
Split dough in half and roll out onto each pan.
Lightly brush a little olive oil onto each crust and sprinkle with salt.
Spread 1/4 cup bbq sauce on each crust.
Combine cooked chicken with remaining bbq sauce until chicken is coated in sauce.
Top pizzas with mozzarella, chicken and sliced onion.
Bake for 12-15 minutes, or until crust is golden brown and cheese is melted.