I just thought I'd share this recipe: http://www.get-real.co.uk/Quick%20Ge...l/QUICKG_1.HTM
Previously, I tried using lentils and black turtle beans as the base ingredients, but the texture was always like I'd mixed legumes and breadcrumbs and formed them into burger shapes! The burgers I just made and ate; I swear that the texture was just like meat burgers!
I did deviate from the original flight-plan, so I'm not certain if it's a simple case of finding the right bean (adzuki/aduki) or if also happened to have other ingredients in the correct proportions (I hate measuring things out).
About 2/3 cup of adzuki beans soaked for a day at room temperature and transferred to refrigerator at about 0 degrees celcius (which I corrected this morning) for two days
No marmite used
Soy sauce and strained tomato used to facilitate blending (through lubrication of mixture)
Seasoning: monosodium glutamate, paprika, random yellow powder left by previous occupant (some kind of flavoursome thing)
Breadcrumbs added to final mixture until mixture falls apart a little bit during stirring.
I shall continue my ad-hoc experimentation to determine the critical factors.
Edit: I just remembered something else which may have been crucial - I forgot to cook the beans! I went straight from soaking to blending. This will be duly investigated.