1bunchcelery, with leaves(about 7 - 8 large stalks)
1poundpotatoes
1large onion
4Tbutter
¼tsalt
3TKing Arthur Gluten Free Measure for Measure Flour
6cupswater
1Tsugar
1Tdried sage
1bay leaf
¼loafsourdough bread
½cupheavy cream
Instructions
Prep the veg - Wash and chop the celery, reserving a few leaves for garnish. Chop the potato into small cubes - no need to peel. Peel and dice the onion.
Sauté the veg - Melt the butter in a large soup pot, then add in the onion, potato, and celery. Sauté until very soft, but not browning. If you need to add some of the water, go ahead.
Make a roux and build the soup - Sprinkle in the flour and stir for a minute our so. Slowly whisk in the rest of the water. Add the sugar, sage, and bay leaf. Simmer for about 20 minutes or so.
Simmer and make the croutons - While the soup is simmering, preheat your air fryer. Cut the bread into 1-inch cubes - there's no need to remove the crusts. Toss with olive oil, salt and pepper and toast in the air fryer for about 10 minutes. Take out of the oven and set aside.
Finish - Take the soup off of the heat and remove the bay leaf. Buzz the soup with an immersion blender until it is very smooth, then stir in the cream. Garnish with celery leaves and sourdough croutons, and serve.