Soak the almonds for few hours and remove the skin. Easier way is to put them in a bowl with water and microwave for a minute and peel. Grind them to a smooth paste adding a little water. You can freeze this for using it in gravies for Shahi curries, sweets, halwas, kheers etc. etc.
Tip: In order not to defrost the entire thing each time, divide the paste into small quantities and store in small zip-lock bags making it easier to use.