Soak almonds overnight.
Discard water and peel almonds (I put the almonds in the microwave for 30 seconds or so, it makes the peels slide right off).
Put peeled almonds and water into blender and blend on highest setting for a minute or until smooth.
Strain using a nutmilk bag (give it a good squeeze!), pour into an airtight container and store in the fridge for up to three days.
Save the pulp! See notes below.