Peach Blossom Eatery will feature a vegan eggplant parmesan sandwich on ciabatta made with cashew-garlic ‘cheese’ and Calabrian chili marinara. At 9 a.m. on a recent Wednesday, Olivia Brinton was busy experimenting. “I just made my first test batch of pistachio-matcha bear claws,” she announced. The Japanese green tea “looks cool,” she acknowledged, but it can taste, well, grassy …