1 - soak 150g of beans in 1L of water for 12 hours

2 - chuck in an onion (cut in half), bay leaf, 4 pieces garlic, 1/2 tsp salt

3 - bing to boil for 10 mins, scraping off any scum

4 - simmer for 1 more hour, before removing the vegetables + leaf BUT NOT THE WATER

5 - fry an onion (chopped finely) in salted butter until golden

6 - add an chilli (I used ancho and apocalypse red) and 2 pieces garlin, both chopped finely

7 - mash beans + water with a potato masher

8 - add the beans along with some oregano and stir

9 - maybe cook a bit more for the liquids to evaporate and then serve