Peel and finely chop or grate the onions.
You can also blend them into a smooth paste for easier extraction of juice.
Step 2: Heat the Oil
In a small pan, combine coconut oil and castor oil.
Heat gently on low flame — avoid boiling.
Step 3: Infuse Onion
Add the chopped or blended onion to the warm oil.
Simmer on low heat for 10–15 minutes, stirring occasionally.
The oil will turn slightly brown and release a mild onion aroma.
Step 4: Cool and Strain
