Can I bake this in a bundt pan or a round pan?
Yes. A 10 to 12-cup bundt works great, and so does a 9-inch round (or 9-inch springform). Bundts usually take a little longer because the cake is thicker. Also, bundt pan sizes vary, so do not fill the pan more than 2/3 to 3/4 full. If you have extra batter, bake it in a muffin cup alongside the cake.
What kind of olive oil should I use?
Use a fruity extra-virgin olive oil you actually like the taste of. If it is aggressively peppery or bitter, it can take over. If your oil is very bold, mix half olive oil and half neutral oil.
How many oranges do I need?
Orange size varies a lot. You will need 2 tablespoons zest and 1/2 cup (120 ml) juice. That is usually 2 to 3 oranges depending on how big and juicy they are.
Can I make it with almond meal?
Absolutely. Almond meal adds a slightly sturdier crumb and a subtle nuttiness. Swap 1/2 cup flour for 1/2 cup almond meal. The texture will be a little more delicate and moist, so be extra thorough with bundt pan prep and unmold while the cake is still slightly warm.
Do I need a mixer?
No. A whisk and a spatula are enough. The goal is to mix until just combined so the cake stays tender.
Can I reduce the sugar?
You can reduce it by about 2 tablespoons without changing the bake much. More than that and the cake can turn a little dry and less tender.
Why did my bundt stick?
Most bundt sticking comes from one of three things: under-greasing, skipping flour (or baking spray with flour), or unmolding too late. Use baking spray with flour or butter plus flour, making sure you get into all the corners. Let it cool 10 to 15 minutes, then invert while it is still slightly warm.