Rich and aromatic olive oil cake is a classic and there are many versions of it. The cake is a snap to make and there is no need to use a mixer or food processor. It’s simply a blend of flour, sugar, and other dry ingredients whisked together with eggs and olive oil. It can be made with regular or extra-virgin olive oil and flavored with orange and lemon. This recipe, made with orange juice, orange zest, and Grand Marnier, is adapted from Maialino, the lovely restaurant on Gramercy Park in New York. Plan to make it ahead of time—because it tastes great and a little boozy after two or three days.