Salty Butter Shou Recs

I am a huge fan of shou puers with a strong buttery flavor and “saltiness” to them almost like popcorn. I had one once from liquid Proust like this that I fell in love with but can’t remember the name of. I’ve been wanting to branch out from boutique teas to factory teas, so I’d love to hear any recommendations for factory shou puer with this kind of character.

Thanks in advance!