BBQ Brisket Pizza with Sourdough Flatbread

In a small bowl, combine the warm water, yeast, and sugar. Let sit for 5 minutes.
In a large bowl add flour, salt, garlic powder, olive oil, egg and sourdough discard. Mix just until combined, then add the yeast mixture. Mix until a shaggy dough, then use your hands to knead for 1-2 minutes, until a smooth and pliable dough. I did this in the bowl, but you can turn it out onto a clean surface also.
Place cover the bowl and place into a warm spot to rise for 30-60 minutes.
Heat up your grill to 500F.
Remove from bowl onto a lightly floured surface and divide into two equal pieces of dough. Rolling each out to ¼” thick oval with a rolling pin.
Brush the dough with olive oil, then place on the hot grill racks. Close the grill lid to cook 3-4 minutes, until slightly charred on the bottom, then flip to cook 2-3 more minutes. The dough should have the grill lines and be puffed up.
Turn the grill down to 350F.
While still on the grill add your pizza toppings and close the lid for 2-3 minutes to get the cheese nice and melty.
Remove from the grill, top with chives and an extra drizzle of bbq sauce and enjoy!