Using a fine grater, grate the lemon peel from some fresh lemon. Place on a baking sheet lined with parchment paper and bake for around 1 hour.
In a blender jar, combine the black peppercorns, and sea salt and blend.
Next, add the cumin seeds, garlic powder, and dried lemon zest and blitz again until coarse.
Transfer to a clean airtight container or a glass jar and store away from direct sunlight.
Notes
Make sure you zest the lemons correctly. Use only the yellow portion, which has a zesty flavor, and avoid accidentally zesting the white pith, which can be bitter.
You can also use a paring knife to peel strips off the lemon and then dehydrate them, instead of zesting them. Remember that if you’re doing this, you’ll need to keep them in the oven for 2-3 hours to make sure the zest is completely dried.
I used only garlic powder, but if you want an extra layer of flavor and deliciousness, you can also add some onion powder to the mix.