Delicious Deserts, 14 Improved Holiday Desserts You Should Try this Year by admin November 17, 2017, 3:47 am 1k Views 11. Vegan Purple Sweet Potato Pie Besides being ridiculously beautiful, this purple pie is completely vegan thanks to coconut milk and tapioca starch (which can be found in the gluten-free section of your grocery store or online). Get the recipe here.