If using dry red chilies then soak them in warm water till a little soft. For a milder paste, you can remove the stem and the seeds.

Remove from water and grind into a smooth paste.

If using fresh red chilies, wash them well and remove half the seeds as they are very very hot. Grind them into a smooth paste.

Heat oil in a pan and add the paste.

Let it cook on low heat for a 3 to 4 minutes. Switch off the gas.

Let it cool and then put in an ice cube tray.

Freeze and transfer to a zip lock bag. Use when required.