Ivy has everything - buns, pastries, egg tarts (nom nom...) and even zhong zi (sticky rice things for Duanwu Festival). I've ordered cakes as well (matcha green tea with red bean, mango mousse) and both were delicious.
Her egg tarts are the best, and Ivy is the sweetest. I'd say her pastries are very authentic (more Taiwanese style). Delicious!