Flan d'Arancia

I love this dessert! It's great after a heavy meal or eating on a warm day. I've made it a few times and I've learned:

-It works amazingly with tangerines -The ground almonds are listed as optional but they add a lovely flavor and shape. I thought it'd end up gritty but it wasn't. -Using the whole eggs leads to a lighter texture. -Don't bother covering when in the oven. I was in a hurry once and forgot and the flan turned out picture perfect. It might help that I have a smaller oven. I've done it covering the flan and the flans were super bubbly inside (which lead to a mushy texture and less attractive presentation).