My advice on bhel to folks who don’t stock an indian pantry is to buy a Bhel Kit — I suggested the same back here in this old post.
The kits come with the dry mix and a couple of small packets of chutney.
You need to add minced onion and cubed boiled potato to really make it bhel.
The reliable brands I know that make these types of kits are Haldirams, Swad, and Deep — but there are others too.
Once you’re comfortable you’ll be making this often, you can buy the individual components (I keep mamra/puffed rice, fine sev, puris, and the various chutneys - though I do sometimes cheat on those as I said in the post linked above).
(Every once in a while, I’ll come across a bottle labeled “Bhel Chutney” which combines the component chutneys — I have been known to stockpile it…)