In bite sized pieces cut the russet potato, celery & carrots, then transfer to a large mixing bowl. Next chop up the yellow onion & mince the 4 cloves of garlic.
In a large stock pot (my favorite linked here), pour 3 tbsp. of olive oil & turn on medium heat. Let heat for a 2 minutes, then add in the diced yellow onion & minced garlic.
Sprinkle the turmeric, onion powder, cumin, salt, pepper & cayenne pepper. Then mix with your cooking spoon. Let that cook down with the veggies & potatoes, garlic & onion, for 8 minutes.