Check and rinse the beans

• Pour the beans into a bowl and pick out any rocks, ugly or split beans.
• Rinse the beans well under running water.

Boil the beans

• Add the beans to a pot with the half onion and garlic cloves; do not salt yet.
• Bring to a boil over high heat, then cover and reduce the heat to low.
• Cook until the beans are completely tender.

Brown the onion

• Remove the cooked beans from the pot and set aside.
• Heat the oil in the pot and brown the sliced onion pieces.

Mash and finish the beans

• Stir the browned onion into the beans and season with salt to taste.
• Mash the beans until smooth.
• Add a little water until the beans reach the desired consistency.