Dill oil is a vivid green finishing oil made by blending fresh dill with a neutral-tasting oil, then straining it for a smooth, fragrant result. Use a small drizzle over fish, potatoes, soup, eggs, or vegetables; gentle heat and careful straining help preserve its fresh flavor and color.
Ingredients
- 2 packed cups fresh dill leaves and tender stems (about 60 g), rinsed and thoroughly dried
- ¾ cup neutral oil (180 ml), such as grapeseed, sunflower, or canola oil
- ¼ teaspoon fine salt (about 1.5 g), optional
Instructions
- Prepare the dill. Pick through the dill and discard any yellowed or coarse, woody stems. Rinse it under cool running water, then dry it very thoroughly in a salad spinner or with clean kitchen towels. Extra water can make the oil cloudy and may cause it to splatter during warming.
- Blanch for a brighter color, if desired. Bring a small saucepan of water to a boil and prepare a bowl of ice water. Dip the dill into the boiling water for 10 seconds, then transfer it straight to the ice water. Drain and squeeze it gently in a clean towel until no water drips out. This quick blanch helps the oil stay vividly green; skip it if you prefer a less involved method, knowing the color may be more muted.
- Warm the oil gently. Put the oil in a small saucepan over low heat and warm it until just lukewarm, about 2 minutes. It should not smoke or sizzle. Remove it from the heat. Do not fry the dill: high heat dulls its fresh aroma and can turn the oil bitter.
- Blend. Put the dill and optional salt in a blender. Pour in the warm oil and blend for 1–2 minutes, stopping to scrape down the sides if needed, until the mixture is uniformly bright green and finely broken down. A high-speed blender makes a smoother oil, but a regular blender works too.
- Strain. Set a fine-mesh sieve over a clean bowl or measuring jug. Pour in the blended oil and let it drain by gravity for about 10 minutes. For a clearer, smoother result, line the sieve with a clean, damp cheesecloth or coffee filter and allow additional time to drip. Avoid pressing hard on the pulp, which can push cloudy particles into the finished oil.
- Transfer and chill. Pour the strained oil into a clean, covered container, label it with the date, and refrigerate promptly. The recipe yields about ½–⅔ cup (120–160 ml), depending on how finely it is strained and how much oil remains in the dill pulp.
Tips
- Dry the herbs well. Water left on the dill can make the oil cloudy and reduces its keeping quality. After washing, spin or towel-dry it thoroughly; if you blanched it, squeeze it especially well.
- Keep the heat low. Warm, not hot, oil is enough to help the dill blend. If the oil starts smoking, let it cool completely before using it; overheated oil can taste harsh.
- Choose a mild oil. Grapeseed, sunflower, and canola let the dill lead. Olive oil is possible, but its stronger flavor can compete with the herb and may become more pronounced when chilled.
- Expect natural variation. Dill’s strength and water content vary, so taste the strained oil before adding more salt. A fine strainer gives a pleasantly herbaceous oil; cheesecloth or a coffee filter makes it clearer but takes longer.
Serving Suggestions
Use dill oil as a finishing touch rather than a cooking oil. Drizzle a teaspoon or two over roasted or boiled potatoes, pan-seared fish, steamed green beans, asparagus, carrots, or a bowl of vegetable soup just before serving. It also works on scrambled eggs, omelets, grain bowls, and warm lentils, where its fresh, grassy flavor brightens richer or earthy ingredients.
For an easy appetizer, spoon a little over labneh, plain yogurt, or soft goat cheese and serve with bread or crisp vegetables. Swirl it into a creamy soup at the table rather than simmering it in the pot; prolonged heat softens the color and aroma. Start with a small amount, then add more to taste—the oil is concentrated and can quickly dominate a delicate dish.
Variations
Lemon dill oil: Stir in 1 teaspoon finely grated lemon zest after straining. Refrigerate it as directed and use within the same short storage window; zest can add a fresh citrus note without introducing much liquid.
Dill and parsley oil: Replace ½ cup of the dill with ½ cup packed flat-leaf parsley (about 15 g). The parsley makes the flavor milder and the green color fuller. Blanch both herbs together if using the optional blanching step.
Garlic version: Blend in ½ small peeled garlic clove and use the oil promptly, within 2 days, refrigerated. Fresh garlic in oil requires particularly careful refrigeration; do not leave it at room temperature or try to preserve it in a jar. For a gentler garlic flavor, serve the dill oil alongside garlic instead of blending it in.
More assertive herb oil: Add 1 tablespoon chopped chives or a small handful of tender fennel fronds. These additions shift the flavor, so begin with a modest amount and taste before straining.
Storage and Reheating
Fresh herb oil is perishable. Transfer it to a clean, covered container and refrigerate it within 2 hours of making; keep it at 40°F (4°C) or colder and use it within 3 days for best quality. If you added fresh garlic, use it within 2 days. Discard the oil if it has been left out longer than 2 hours, or if you notice an unusual smell, appearance, or signs of spoilage. Do not store homemade dill oil at room temperature, attempt home canning, or rely on oil to preserve the herbs.
The oil may become cloudy or partly solid in the refrigerator. That is normal for some oils and does not by itself mean the oil has spoiled. Let only the portion you plan to use stand at room temperature for 10–15 minutes, or set its container briefly in lukewarm water; do not heat it aggressively. This is a no-cook condiment, so it does not need reheating. Freezing is possible, though it may slightly change the texture: freeze in a small, airtight container or an ice-cube tray, then transfer portions to a freezer-safe bag and use within 2–3 months for best flavor. Thaw in the refrigerator and do not refreeze thawed portions.
Frequently Asked Questions
Do I have to blanch the dill?
No. Blanching is optional and mainly helps the finished oil keep a brighter green color. If you skip it, blend the thoroughly dried dill with gently warmed oil as directed; the flavor will still be fresh, although the color may be less vivid.
Can I make dill oil without a blender?
A blender gives the most even extraction, but you can finely chop the dill and stir it into the oil. Let it stand briefly, then strain through a fine sieve or cheesecloth. The result will be less smooth and may have a gentler flavor.
Why is my dill oil cloudy?
Cloudiness often comes from water on the herbs, fine plant particles, or oil that has chilled. Let refrigerated oil come slightly toward room temperature to see whether the cloudiness clears. Next time, dry the dill thoroughly and strain without pressing the pulp.
Can I use dried dill?
Fresh dill is strongly preferred for this recipe because it supplies the clean flavor and green color. Dried dill will not produce the same vivid herb oil and may create a gritty or muted result. If fresh dill is unavailable, use dried dill in a dressing or sauce instead.
Can dill oil be kept on the counter?
No. Homemade oil blended with fresh herbs should be refrigerated promptly and used within 3 days. Do not treat it as a shelf-stable infused oil or store it in a pantry.
Can I use the leftover dill pulp?
Yes, if it has been handled cleanly and kept refrigerated. Stir a little into yogurt, mayonnaise, or a salad dressing and use it promptly, ideally the same day; it will be more fibrous and less concentrated than the strained oil.
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