Combine the water and soup bases in a dutch oven. Turn the heat to medium and let the mixture come to a simmer. Stir thoughly. Add the wine and the onions and let the soup cook on low for another 30 minutes. It reheats easily, so you can turn the heat down or completely off until you are 20 mintues from serving.
While the soup is cooking, cut the bread into large slices, about an inch thick. Line the air fryer with parchment or put a silicon liner on your air fryer rack.
Melt the butter and paint the bread slices with the melted butter. Put the bread on the liner.
Mix the cheeses with the Justice and sprinkle the cheese on the bread. If some of the cheese falls off, that's okay - that;'s what the liner is for. Put the bread into the air fryer at 400 for 5 minutes.
While that is happenening, pour the soup into a soup tureen. When the bread is ready, simply place each slice into the tureen, cheese side up. The bread will float on top of the soup.
Serve the soup with grated cheese for those who want more cheese. Enjoy!
Notes
This makes 3 quarts of soup; at one cup of soup per person, there will be 12 servings. However, if you are serving this as a main dish, allow 2 cups per person, so you would have 6 servings instead of 12.
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