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Quick 5-Minute Fresh Rosemary Salt for Your Pantry

The microwave dries fresh herbs in minutes so you can quickly mix up a bright green batch of Rosemary Salt to sprinkle on your finished dishes.

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A bowl of bright green rosemary salt next to fresh rosemary.
Photograph by the CookingMyRecipes kitchen
Total
7 min
Prep
5 min
Cook
2 min
Makes
1 batch
Level
Easy

You can make a batch of 5-Minute Fresh Rosemary Salt from scratch using just a microwave and a plate. The appliance dries fresh herbs quickly, trapping their bright green color and essential oils before you crush them into everyday table salt. The whole process takes exactly 5 minutes, giving you a quick finishing seasoning for fries and roasted vegetables.

Preparing the herbs

Begin with four fresh rosemary sprigs measuring six inches (15 cm) long. Using fresh clippings rather than the pre-dried supermarket alternatives provides a much stronger taste. The fresh leaves also give your final mixture a vibrant green color.

Drying in the microwave

The fastest way to dry the herbs is in the microwave. Place a paper towel flat on a microwave-safe plate. Lay your four rosemary sprigs out in a single layer. Cover the herbs completely with a second paper towel. The paper towels absorb the moisture as the leaves heat up.

Microwave the plate on high power in short, thirty-second bursts. Check the leaves after every burst. Stop microwaving as soon as the leaves become completely dry and brittle. They should still hold their bright green hue.

Oven drying alternative

You can use a conventional oven if you prefer. Preheat the oven to 210°F (100°C). Place the rosemary sprigs on a baking sheet and heat them for fifteen to twenty minutes. Keep a close eye on the leaves as they dry. Do not let the rosemary turn golden in the oven. Golden rosemary leaves taste bitter.

Grinding the dry leaves

Remove the dried leaves from their woody stems. Discard the stems. You need to break the brittle leaves down into a coarse powder.

You can grind the leaves quickly using a mortar and pestle. If you do not own one, you can simply crumble the brittle leaves between your fingers until they form a rough dust. Measure out exactly three teaspoons of the crushed herb for the recipe.

Mixing the salt

Place your half teaspoon of table salt into a small bowl. Add the three teaspoons of ground rosemary.

Stir the mixture thoroughly until the green dust distributes evenly through the white salt. Table salt is the recommended choice because its fine grains adhere well to the surface of foods like french fries. You can substitute standard cooking salt or kosher salt if you want a coarser texture.

When to use the seasoning

Treat this mixture exclusively as a finishing salt. Do not apply the rosemary salt to raw ingredients before high-heat cooking. The small pieces of dried herb will burn in a hot pan or on a grill.

Sprinkle the salt onto your food right before you eat. It works well on a plate of golden french fries, cooked proteins, roasted vegetables, fried eggs, or avocado toast. You can also substitute it for plain salt when you mix savory baking batters, whisk together salad dressings, or pour olive oil bread dips.

Storage

Keep your new seasoning inside a small, tightly sealed glass jar. Place this jar on a pantry shelf for storage.

The salt keeps for several weeks in the cupboard. You can still eat it after a month, although the fresh rosemary flavor gradually diminishes over time.

The Recipe makes 1 batch · 7 min

Quick 5-Minute Fresh Rosemary Salt for Your Pantry

1 batch

Ingredients

  • 4 x 6" (15 cm) sprigs of rosemary
  • 0.5 tsp table salt

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Method

1
Place a paper towel on a microwave-safe plate. Lay the rosemary sprigs out flat in a single layer. Cover the herbs completely with another paper towel.
2
Microwave the plate on high for 4 bursts of 30 seconds. You can also preheat an oven and dry the rosemary there. Check the leaves to make sure they are completely dry and still hold a bright green hue. They are ready when the leaves easily turn to dust when pinched. Timer 0 min
3
Remove the dried leaves from their woody stems. Grind the herbs until they form a rough dust. Measure out exactly 3 teaspoons of the crushed herb.
4
Mix the 3 teaspoons of ground herbs thoroughly into the table salt. Keep your new seasoning inside a tightly sealed jar. Do not cook with this blend. Apply it only to finished plates to protect the fresh herb flavor.
Cook's notes

Substitutions

Cooking salt or kosher salt can easily replace the table salt in this recipe.

Storage

Keep this 5-minute fresh rosemary salt inside a tightly sealed jar in your pantry, where it will last for several weeks.

Keep dried herbs and homemade spice blends away from direct sunlight and heat to help preserve their volatile oils.

Serving

Sprinkle this blend over french fries, roasted vegetables, or avocado toast as a flavorful finishing touch.

Common mistakes

Do not add this seasoning to food before high-heat cooking because the dried herbs will quickly burn.

Make sure the rosemary leaves do not turn golden during the drying process to prevent a bitter flavor.

Techniques

If you choose to use an oven instead of a microwave, bake the sprigs at 210°F (100°C) for fifteen to twenty minutes until brittle.

Use a mortar and pestle to easily grind the dried leaves into a coarse powder.

Always ensure your storage jars are completely clean and dry before filling them to prevent trapped moisture from clumping your salt.

Make ahead, store & reheat
Store
Keep this 5-minute fresh rosemary salt inside a tightly sealed jar in your pantry, where it will last for several weeks. Keep dried herbs and homemade spice blends away from direct sunlight and heat to help preserve their volatile oils.
Frequently asked
Can I use pre-dried rosemary from the store instead of drying my own?

You can, but starting with fresh sprigs provides a much stronger flavor. The freshly dried leaves also retain a vibrant green color that you will not get from store-bought jars.

Can I use this as a dry rub before grilling or searing meat?

No, you should only sprinkle the 5-Minute Fresh Rosemary Salt onto cooked proteins right before eating. The small pieces of dried herb will quickly burn if applied before high-heat cooking.

How do I turn the dried leaves into powder if I do not have a mortar and pestle?

Once the leaves are completely brittle from the microwave or oven, you can simply crumble them between your fingers to form a rough dust. Just be sure to remove the leaves from their woody stems before you start grinding.

Can I use this blend in liquid recipes like vinaigrettes?

Yes, this seasoning works incredibly well as a substitute for plain salt when whisking together salad dressings. You can also mix it directly into olive oil bread dips or savory baking batters.

Can I dry other types of fresh herbs in the microwave?

Yes, the microwave technique works beautifully for other woody herbs like thyme and oregano. More delicate leafy herbs can also be dried this way, but they usually require shorter bursts of heat to prevent burning.

Why do homemade herb and spice blends eventually lose their flavor?

Light, heat, and air naturally break down the volatile oils inside dried herbs over time. Keeping your seasoned salts in a dark pantry inside airtight containers helps them retain their potency for as long as possible.

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