You're probably wondering why I'm posting a recipe with almond flour on the site. Well, you'll know exactly why in a few days when you'll see the beautiful macarons you can make with it. Good almond flour is the key ingredient in the macarons recipe. Before you start, I recommend getting good almond flour, store-bought or homemade.
The need to make almond flour at home came from several reasons. Almond flour found in shops is quite expensive and there is a pretty good chance that it won't have the required quality. It might be rancid or coarsely ground, which is not recommended for macarons.
Most of the time I do as you see in the video. I peel and dry the almonds, then grind with a simple coffee grinder. Thus, from 500g of unpeeled raw almonds, I get 475g of fine and perfect almond flour. More recently, I found almonds already peeled at a reasonable price, and I can skip the drying, the peeling etc.
If you are serious about macarons, you should invest in a coffee grinder and you will always have almond flour at hand. I also used it to make the flour from unpeeled almonds. This also works, only you'll need peeled / blanched almonds or almond flakes for perfectly white macarons.
Stored in the refrigerator, it lasts for many days and won't go rancid. Use anytime you need.