![Creamy Gluten-Free Mushroom Soup](https://www.thenewdeli.com/wp-content/uploads/2016/09/Grateful-Table-Mushroom-Soup-150x150.jpg)
We used to make a more traditional mushroom soup at The New Deli, using a roux of flour and butter. But why use flour if you can go gluten-free, and let something else give the soup body?
Now we caramelize a pile of onions in butter until golden, then puree that with some mushroom powder, which adds some intense mushroom flavor.