• Prep Time: 10 minutes
• Infusion Time: 15 minutes
• Cooling Time: 20 minutes
• Total Time: 45 minutes
• Difficulty Level: Easy
• Yield: About 2 cups

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Ingredients

• 2 cups extra-virgin olive oil
• 4–5 fresh rosemary sprigs, washed and thoroughly dried
• 2 garlic cloves, lightly crushed (optional)
• 1 teaspoon whole black peppercorns (optional)
• 1 small strip of lemon peel (optional)

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Equipment Needed

• Small saucepan
• Fine-mesh strainer
• Heatproof bowl
• Glass bottle or jar with a tight-fitting lid
• Funnel
• Measuring cups

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Instructions

Step 1: Prepare the Rosemary

Rinse the rosemary sprigs under cool running water to remove any dirt.

Pat them completely dry with a clean kitchen towel or paper towels. Allow them to air-dry if needed, as excess moisture can affect storage.

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Step 2: Warm the Oil

Pour the olive oil into a small saucepan.

Add the rosemary sprigs and, if using, the garlic, black peppercorns, and lemon peel.

Warm the oil over low heat for 10–15 minutes. The oil should become fragrant but should not boil or smoke.

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Step 3: Infuse

Remove the saucepan from the heat.

Allow the rosemary to steep in the warm oil for another 15 minutes to deepen the flavor.

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Step 4: Strain

Pour the infused oil through a fine-mesh strainer into a heatproof bowl to remove the herbs and optional aromatics.

If you prefer a stronger herbal flavor and are using thoroughly dried rosemary, you may leave a small sprig in the bottle for presentation.

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Step 5: Bottle

Using a funnel, transfer the cooled oil into a clean, dry glass bottle or jar.

Seal tightly.

Store in the refrigerator if fresh rosemary was used.

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Tips for Success

• Use high-quality extra-virgin olive oil for the best flavor.
• Dry the rosemary thoroughly before infusing.
• Heat the oil gently—avoid boiling, which can diminish the herb’s aroma.
• Refrigerate oil made with fresh herbs and use it promptly.
• Label homemade bottles with the preparation date.

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Flavor Variations

Garlic Rosemary Oil

Increase the garlic to four cloves for a bolder savory flavor that’s perfect for roasted potatoes and grilled vegetables.

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Lemon Rosemary Oil

Add extra strips of lemon zest for a brighter citrus aroma. This variation pairs well with seafood and salads.

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Rosemary and Thyme Oil

Combine fresh rosemary with fresh thyme for a classic Mediterranean herb blend.

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Spicy Rosemary Oil

Add a teaspoon of crushed red pepper flakes during the infusion for gentle heat.

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Herb Garden Oil

Mix rosemary with dried oregano, basil, and thyme for a versatile seasoning oil.

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Serving Suggestions

Rosemary infused olive oil is incredibly versatile. Drizzle it over roasted potatoes, grilled vegetables, pasta, soups, pizza, or baked focaccia. Use it as a bread dipping oil with balsamic vinegar, whisk it into salad dressings, or brush it over chicken, fish, tofu, or vegetables before roasting or grilling. It also makes a flavorful base for marinades and homemade herb breads.

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Storage Instructions

• Refrigerator (fresh-herb infusion): Up to 1 week.
• Refrigerator (dried-herb infusion): Up to 1 month.
• Allow refrigerated oil to come to room temperature before using if it becomes cloudy or solidified.

Always discard the oil if it develops an off odor or signs of spoilage.

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Common Mistakes to Avoid

• Using wet herbs, which can shorten the storage life.
• Overheating the oil until it smokes.
• Leaving fresh herbs in oil for extended storage.
• Using low-quality olive oil, which can affect the final flavor.
• Storing fresh-herb oil at room temperature for long periods.

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Health Benefits

Rosemary and extra-virgin olive oil each contribute valuable nutrients and plant compounds:

• Rosemary contains antioxidants and naturally occurring aromatic compounds.
• Extra-virgin olive oil is rich in heart-healthy monounsaturated fats and vitamin E.
• Together, they provide a flavorful alternative to heavily processed sauces and dressings.
• Using herb-infused oil can encourage the use of healthy fats while enhancing meals with fresh, natural flavor.

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Frequently Asked Questions

Can I use dried rosemary?

Yes. Dried rosemary works well for infused oils and generally allows for a longer refrigerated storage time because it contains less moisture.

Can I use this oil for cooking?

Yes. It is excellent for sautéing, roasting, grilling, and finishing dishes. However, avoid overheating extra-virgin olive oil beyond its recommended cooking range.

Why did my oil become cloudy?

Olive oil naturally becomes cloudy or semi-solid when refrigerated. This is normal and will clear once it returns to room temperature.

Can I give this as a gift?

Yes. Homemade rosemary infused oil makes a thoughtful gift. If using fresh herbs, advise recipients to refrigerate it and use it within one week for food safety.

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Recipe Summary

• Recipe Name: Rosemary Infused Olive Oil
• Cuisine: Mediterranean
• Course: Condiment
• Difficulty: Easy
• Prep Time: 10 minutes
• Infusion Time: 15 minutes
• Cooling Time: 20 minutes
• Total Time: 45 minutes
• Yield: 2 cups
• Calories: Approximately 120 calories per tablespoon

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Nutrition Information (Per 1 Tablespoon)