Just, like, don't do it every day. k? k.
Okay, This is the same recipe that I used for the battered seitan a while ago. It's crunchy and crisp, but not incredibly greasy or heavy. Here I've used it to batter some tofu nuggets:

(Yeah, yeah, I know battered tofu and potato wedges does not a healthy meal make, but I was feeling like slobbing out, okay?)
Ok so here's the dealio:
To a fairly large bowl, add:
1 cup flour
1 tsp smoked paprika
2 tsp garlic
1 tsp salt
1 tsp turmeric
1 tbsp oil
1/4 soy milk
Mix up until it's good and mixed and then add enough water to make it nice and thick and gloopy, for me this is 3/4 cup.
Makes enough to have lots of battering fun. Try battering a vegan mars type bar. Or not, evs.
Anyhoo, enjoy, but not too much.
ETA - You don't need a deep fryer to use this batter. I don't own one, and all my battery goodness is shallow fried.