If you grind your own almonds, you may find they are a bit more moist and soft, so you may need a little more than the amount listed here - I have made it both ways and found when grinding my own, I needed more and also had slight lumps of almond (not bad, but you can see in pics) but that's probably due to how I ground them. With bought almond flour, the amount listed was fine and it was a little smoother. But, potentially the flavor was just slightly less almond-y though it's hard to say.