Reach out to those academics who study pastry filling optimization at a variety of institutions. Most won't get back to you, as a professor/academic's day job is busy and requires more than simply conducting research. This isn't out of malice so much as an accident. Heck, some professors I am taking classes with miss my emails!
Eventually you'll build up a relationship with a few who have returned your emails (or Twitter DMs). At this point, you could suggest collaborating on a paper together. Most will probably decline, but there is a nonzero amount of academics more than willing to collaborate with anybody, given they know you have your wits about you. That is, so long as you don't come across as a pastry filling optimization crank. :)