In a medium-sized bowl, whisk 1 cup of warm water, sugar and yeast
Let bowl sit for about 5 minutes until top of water mixture is frothy (activating the yeast)
Add remaining 1 cup of warm water, 1/4 cup of extra virgin olive oil, 1 tbsp salt, 1 tsp garlic powder, and 1 cup of flour. Whisk until until all flour lumps are removed
Add each additional cup of flour one at a time and mix with a wooden spoon until each cup of flour is incorporated into the dough
All flour should be incorporated into dough. Use hand and knead in bowl if not all flour is part of dough
Once all flour is incorporated to the dough, and dough is no longer sticking to the sides of the bowl, knead dough on floured surface for about 5-7 minutes. You are done kneading if you press on the dough and it bounces back
Split dough into 3 equal parts (I like to do this so I can freeze some of the focaccia and save for later)
Lightly cover 3 medium sized bowls with olive oil
Place one dough ball into a bowl and move the ball around the bowl to coat the dough with oil. Repeat with each ball of dough in each separate bowl
To allow the dough to rise, cover each bowl with saran wrap and place in a sunny or well lit spot. Dough should not be in a cool area. Try to find a warmer humid environment, but in light should work well, too
Allow the dough to rise to be about double in size, about 1.5 to 2 hours
Prepare 3 round 8 inch baking pans by coating with olive oil (about 2 tsp)
Once dough has risen to double in size, add each to a baking pan. Stretch the dough to reach the sides of the pan, but be careful not to tear the dough. Cover the pan and dough with saran wrap and let rest in the fridge for 8-12 hours
After dough has completed resting in the fridge, remove from fridge. Turn oven on to 450 F and let dough rest outside of the fridge while the oven warms up (about 10 minutes)
Remove saran wrap from dough. Dimple your dough using your fingertips. Split topping into 3 equal parts and add on top of your dough, evenly distributing toppings and oil over dough's surface. Topping recipe below
Place all pans in oven in middle rack for 25-30 minutes. Pull out from oven when top is golden and slightly browned. Let cool and enjoy!
Sumac and Onion Topping
Add olive oil to medium saucepan
Thinly slice 2 small yellow onions
Turn heat on medium and add onions to olive oil
While onions are cooking, thinly slice 4-5 heads of garlic
Once onions have started to soften, add garlic slices to olive oil and turn heat on low. Allow pot to heat on low for about 5 minutes
Remove from heat, wait 10 minutes and add to storage container. Mix in 4 tbsp of sumac and store olive oil mixture (not refrigerated) until focaccia is ready for topping
Notes
I used 3 baking dishes because I like to freeze 2 cooked focaccias and save for a later date. You can use a large or XL baking pan if you want to serve all at once.