Indian bhajis are a popular snack or side dish in UK Indian restaurants…deep fried onions in  a batter made of chick pea flour with various spices usually including cumin, coriander, black onion seed or kalonji (Nigella sativa), I replaced the cumin with golpar (ground seed of Heracleum persicum collected from a wild stand in Trondheim)! Delicious!
P.S: Mental note: try with broad bean flour!