This is the best Refined Sugar Free Vanilla Oat Cake recipe with our Organic Vanilla Blend. It’s gluten free, refined sugar free, and so quick and easy to make. Deliciously made from scratch, this cake is perfect for every occasion! This Oat Flour Cake is so easy to make, you mix everything in one bowl, pour it into a cake pan and bake! With no added refined white sugar, this cake uses coconut sugar as an alternative natural sweetener.