Starving-Student Mushroom Soup

1 tablespoon of butter
1 medium onion, chopped
1 16-ounce can of Great Northern beans, drained and rinsed
1 15-ounce can of vegetable broth
8 ounces of small brown cremini mushrooms, sliced
Salt to taste
Freshly ground black pepper to taste

Melt the butter in a soup pot over medium heat. Add the onion.

Saute the onion until it is golden brown and soft.

Transfer the onion to a food processor along with the beans.

Process until the onion and bean mixture is smooth.

Add the broth and process again briefly.

In the soup pot, combine the mushroom slices with enough water to keep the bottom of the pan wet. Cover the pan and steam the mushrooms for 8 minutes.

Transfer the mixture from the food process back to the soup pot and stir well. Add a little water if the soup is too thick.

Heat the soup slowly until it is heated through.

Season to taste with the salt and the pepper.

Serve hot with a good bread and your favorite salad.