Black Beans soup

Ingredients:
Black Beans 2 cups
Vegetable broth 6 cups
Onion 1 (chopped)
Bell pepper 1 (chopped)
Tomato paste 1 tblsp
Garlic 3 flakes (chopped)
Chilli powder 1/2 tsp
Ground cumin 1 tsp
Ground pepper 1 tsp
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Method:
Pressure cook black beans with water.
Allow four whistles.
Puree half of the cooked black beans with vegetable broth in a blender.
Heat oil in a pan.
Add chopped onion,bell pepper,garlic and cook until tender.
Add black bean puree.
Add tomato paste,chilli powder,ground cumin and ground pepper.
Add salt.
Add the remaining whole beans.
Bring to a boil.
Reduce the heat,cover the pan and simmer,stirring frequently until the flavours are melded to form a soup.