Macaroons are supposed to spread a little bit when they're baking, but not by a lot. If your macaroons are spreading too much, they may not be cold enough. I like to start by making a small batch of 2-3 macaroons, to make sure they're ready to bake.u003cbr/u003eIf they spread too much, return the macaroons to the refrigerator for another 20 minutes. Once the batter has a chance to get cold, the macaroons shouldn't spread in the oven when baking.u003cbr/u003eAlso make sure you're not over-mixing, which may cause the coconut macaroons recipe to spread. Next time you make these, make sure you're measuring your flour correctly, as too much or too little can cause the macaroons to spread.