This cake is one of the most beautiful things I have made in a while, to toot my own horn! I made olive oil cake a few years ago for a class and really loved its dense, yet spongey texture. Adding blood orange juice felt like the perfect use of the gorgeous seasonal citrus and a fun way to give a subtle tart flavor to an otherwise sweet dessert. This cake is a true winter delight, although equally as satisfying in the warmer months, especially when substituting lemon juice!