Melt the butter in a medium-sized saucepan over a low heat. Add the shallots and cook for a few minutes, then add the garlic. Once translucent, add the beans, along with all of their bean stock.
Let the beans bubble away for a few minutes, mashing them up as you go to reach your desired consistency. Add the lemon juice and miso paste and stir to combine. Keep cooking for a couple of minutes, adding a splash of water if the mixture looks too thick, just to make sure the miso has melted through the beans.
Pour your miso beans into a bowl and top with whatever you fancy!
