Next, place the rosemary needles between two sheets of baking paper. This helps prevent scorching while allowing them to dry evenly. Pop them in the microwave for about two minutes, checking halfway through to ensure they’re drying—not burning.
You’ll know they’re ready when they feel crisp and snap easily between your fingers. Once fully dried, transfer the leaves into a spice grinder, food processor, or high-speed blender. Pulse in short bursts to break down the needles into a fine, fragrant powder. If you prefer a super smooth texture, you can sift the powder through a fine mesh strainer to remove any remaining coarse bits.
Finally, pour your rosemary powder into a clean, airtight jar. Label it if you like—and that’s it! You’ve made your own rosemary powder in just a few minutes. Store it in a cool, dark place and use it anytime you want to add an herbal punch to your cooking.
