Food Processor Method: Add almonds to a food processor and pulse in short bursts until the almonds are broken down into smaller bits. Use a rubber spatula to remove any almond bits on the side or bottom of the bowl. Repeat processing until a flour texture is achieved.
Blender Method: Add almonds to a blender jar and pulse in short bursts until the almonds are broken down into smaller bits. Use a rubber spatula to remove any almond bits on the side or bottom of the jar. Repeat processing until a flour mixture is achieved.