Boil 1.5-2 liters [0.5 gallons] of water and pour into a large bowl.
Cut a small X on the bottom side of the tomatoes.
Place the tomatoes in the hot water for a few minutes.
Take the tomatoes out, and after they cool a bit, peel them from the X marks. Cut the tomatoes into cubes.
Cut the onion into small pieces.
Peel clean and cut the celery root into quarters.
In a pot sauté the onion in a bit of oil over low to medium heat, until it becomes translucent.
Add the garlic and let it cook for a minute until its fragrance changes from spicy to sweet.
Add the tomatoes, wine, celery root, and spices and bring to a boil. Lower the heat and cook for about an hour.
Take out the celery root and discard it. Use a hand blender to pureé the sauce.