Regional desserts yummy.
Well my mom is from Hawaii and my dad is from Portugal. So I grew up with Hawaiian haupia, malasadas (from Portugal and bought over to the islands) and pasteis de nata comes from Portugal and is served during Christmas time. There is no California dessert that I know of. We have a lot of fresh fruit so fruit pies are all over the place here.
Haupia is unique I think it came to Hawaii from Japan but I'm not sure. It is a coconut pudding. They are cut into squares and are served at luaus.
Malasadas are similar to a Beignets it's Portuguese not French and is a yeast risen doughnut dipped in sugar or sometimes cinnamon and sugar.
Pasteis de nata are custard tarts. I use whole vanilla bean in my custard it's more expensive but worth every penny. That vanilla brings the favor. I also use puff pastry and the crust is light and flaky.