Two cans of black beans, rinsed and drained
1.5 cups vegetable broth
1 tsp cumin
1 cup salsa
Put all ingredients in a large saucepan, blend with an immersion blender until smooth. Heat until hot. Serve in a bowl with a green onions, a little cheese and sour cream on top if you desire.
This is especially delicious with a cheese quesadilla to dip with.
Source: slightly adapted from http://www.annies-eats.com