To keep coriander chutney green, blanch the coriander leaves briefly in boiling water, then immediately transfer them to ice water before blending. This helps preserve the chlorophyll.
Maintaining the vibrant green color of coriander chutney involves preventing the chlorophyll in the coriander leaves from degrading. Here's a step-by-step guide:
Blanch the Coriander: Bring a pot of water to a rolling boil. Add the coriander leaves (washed and roughly chopped) to the boiling water for just 15-20 seconds. This brief blanching deactivates enzymes that cause browning.
Shock in Ice Water: Immediately transfer the blanched coriander leaves to a bowl of ice water. This stops the cooking process and helps to set the green color.
Drain Well: Thoroughly drain the coriander leaves from the ice water. Excess water can dilute the chutney and affect its texture.
Blend with Other Ingredients: Add the blanched coriander to your blender or food processor along with the other chutney ingredients (e.g., green chilies, ginger, garlic, lemon juice, salt, and a little water). Lemon juice helps to preserve the color as well.
Blend Quickly: Blend the ingredients until you achieve your desired consistency. Avoid over-blending, as this can generate heat and dull the color.
Store Properly: Store the chutney in an airtight container in the refrigerator. A layer of oil on top can further help to prevent oxidation and maintain the color.
Adding a small piece of ginger and a squeeze of lemon or lime juice not only enhances the flavor but also acts as a natural preservative, helping to maintain the vibrant green color of your coriander chutney for a longer period.