Add the almonds and blanch for 1 minute, then drain and rinse with cold water.
3
Pinch each almond to slip off its skin.
4
Spread the peeled almonds on a clean towel and pat them dry.
5
Arrange them in a single layer on a baking sheet and dry in a 200°F (95°C) oven for 15–20 minutes, until completely dry but not toasted.
6
Let cool completely.
7
Pulse the almonds in a food processor in short bursts until finely ground, stopping as soon as they resemble flour; overprocessing can turn them into almond butter.
8
Sift if desired, and store the almond flour in an airtight container in the refrigerator.