Preheat oven to lowest heat setting (150°F or 170°F) depending on your oven.Rinse and dry chives. (Chives should not be wet when going in the oven.)Finely dice chives.
Line a baking sheet with parchment paper for easy cleanup.Lay chives on the baking sheet in a single layer. If chives are crowded, they will take longer to dry.
Slide the chives into the oven. Prop the oven door partially open with a wooden spoon (or another heat-proof utensil).Begin checking chives after 25 minutes, and then again in 10-minute intervals until they are dry and crunchy to the touch.Store chives at room temperature in an airtight container or bag, and use within 2 years.
Notes
Recipe amounts approximate. Yield will vary based on how many chives are used and how finely they are diced. Nutrition information estimates a total yield of 1 cup diced chives.Color Fading: Dried chives will gradually lose their bright green color. As long as they still have a woodsy onion scent, they're still good to use!