There are no FOSS payment methods. In fact, you’re probably lucky to find a payment processor that will handle FOSS stuff at all.
If you’re ever in the EU, you might find this brand:
Can’t vouch for them though, I have never tried them. But as you can see, there’s a spicy variant (piri piri) too.
Related: There is a replacement for cheese dip that’s basically just potatoes, olive oil, carrots, and yeast flakes.
A man of the people, chatting with one of the people.
No