Bean & Flax Burgers

Sometimes I enjoy a vegan burger more than a meaty one. Burger joints all over the Baltic States make their vegan burgers using all sorts of meat substitutes, but for me the good old bean burger wins the taste test every time. I find a mixture of beans (dried, not tinned) really hits the spot here. I like to use fasola jaś white beans, which are available from any Polish shop, though butter beans work well too. For me, the ideal topping is some home-made fermented vegetables; however, if yo