Blanching chives before blending will keep the bright green color - simply add them to boiling water for 30 seconds and then transfer to an ice water bath to stop the cooking. Pat dry before blending. This is cosmetic and is optional. If you pour this through a coffee filter, you are left with a bright green oil without the solids that makes for an even better presentation. Again, an optional step. This dish makes extra chive oil. Keep it in the fridge for a couple of weeks. It’s great drizzled on salads, soups, meats, and fish.