Are these cookies or biscuits?
They are cookies in the American sense, but they have that biscuit-like bite: crisp edges, slightly firmer chew, and a sturdy shape. If you call everything snacky a biscuit, you are among friends.
Do I really need to separate eggs?
If you are starting with whole eggs, yes, you will separate them to get the whites. If you want to skip that step, carton liquid egg whites work great here. Measure about 90 g (a scant 1/2 cup) for this recipe. Pasteurized carton whites are totally fine since we are not whipping them.
Can I use unsweetened coconut?
Yes. The coconut flavor is great, just less sweet. If using unsweetened, I recommend adding 1 to 2 extra tablespoons sugar and an extra splash of vanilla. Texture-wise, unsweetened coconut can feel a bit drier, so watch bake time and pull the macaroon biscuits when they are lightly golden. Browning can vary a lot by oven, either way.
Why did my macaroon biscuits spread?
Most often it is a too-wet mixture, which usually means too much egg white for the amount of coconut (extra-large whites happen) or the coconut was under-measured. If the mix looks loose or puddly, stir in 2 to 3 tablespoons shredded coconut (or 1 tablespoon flour) and let it rest 5 minutes before scooping. Also make sure your sheet pan is cool and lined, not warm or greasy.
Why are my macaroon biscuits dry?
Overbaking is the usual culprit. Pull them when the tops are light golden and the edges are toasty, even if the centers still look a little soft. They firm up as they cool.
Can I make them gluten free?
Yes. Swap the all-purpose flour for a 1:1 gluten-free baking blend. For the closest texture, use a blend that includes xanthan gum or guar gum. Results vary by brand, but these stay chewy and still crisp nicely at the edges.
Can I add condensed milk?
You can, but it becomes a different style of macaroon. This recipe is the egg-white bound version for a cleaner coconut flavor and crisper edges.