Peanut soup with beef- African food Recipe

A simple recipe on how to make the African Peanut soup with beef also called Groundnut soup.
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Groundnut/peanut soup Recipe:
you will need:
500g beef
1 cup of peanut butter
3 mashed tomatoes
2 tablespoons tomato paste
1 large onio
2 garlic cloves
chili peppers, to taste
black pepper
1 cup of green onion, sliced
1 bouillon cube, optional
50 ml of oil
Water and salt