Sudanese Red Lentil Soup

This recipe is adapted from a soup mix made by the First Congregational Church in Williamstown, MA. They sell the mix to raise money to support elementary schools and other programs for internally displaced persons in Sudan (through the ecumenical Williamstown Sudan Relief Task Force). The soup is very easy and will warm you up on a cold day.

2 cups red lentils
1 1/2 t ground coriander
1 1/2 t ground cumin
1/2 t freshly ground black pepper
1 t salt
1 t dried mint (optional - I don't use it)
4 1/2 cups veggie broth, chicken broth, or water (I use veggie broth)
1 onion, chopped
1 T butter
2 T olive oil, divided
2 cloves garlic, minced
4 oz feta cheese
1 lime

1. Soak lentils in cold water. Stir. Remove anything that floats up. Drain. Repeat. Discard water.
2. Put lentils in a large heavy pot. Add spices, 3 1/2 cups broth or water, onion, and 1 T each of butter and olive oil. Be sure the mixture is well covered with liquid. Bring to a gentle boil and stir often so the bottom doesn't burn. After 10 minutes, add one more cup of broth or water. Boil gently, stirring often, for 30 minutes. Soup will become yellow, creamy and thick.
3. In a separate pan, saute 1 T garlic in 1 T olive oil until fragrant. Add to the soup. Cut the feta into chuncks and add to the soup. Gently boil for 5-8 minutes, stirring to break up the feta.
4. Taste the soup and adjust seasonings. Squeeze the lime in and stir its juice into the soup. Serve!