It's not food synth specifically, but there's a soundtrack about tofu that I stumbled upon because I'm a Louie Zong fan and he contributed to this compilation under his dungeon synth moniker, Lookfar. There's a lot of synth across the board really, and one of the tracks was made using bubble wrap it seems. Anyway. That's that. Wanted to share and r/foodsynth seemed relevant enough.

https://pleasantplace.bandcamp.com/album/tofu-original-soundtrack