Holiday Chestnut Truffle Oil Dressing
An elegant, nutty dressing balancing roasted chestnuts with truffle oil, aged balsamic vinegar, and shallots. Silky, richly flavored, and perfect for autumn greens, grain bowls, or drizzled over roasted vegetables. The chestnuts add natural sweetness and body while truffle oil brings luxurious depth.
Steps
Before you start
- Use roasted chestnuts (not raw); canned or vacuum-packed work perfectly
- Have all ingredients at room temperature for emulsification
- Use good-quality aged balsamic vinegar for depth of flavor
- This dressing is best whisked by hand to preserve the chestnut texture
Purée the chestnuts
- Place the chopped roasted chestnuts in a medium mixing bowl.
- Using the back of a spoon or a small fine-mesh sieve, press the chestnuts through to create a smooth paste.
- Alternatively, pulse them briefly in a food processor until very smooth, about 10–15 seconds.
- You should have approximately ¼ cup (60 ml) of chestnut purée.
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Ready when: Chestnuts are completely smooth with no chunks remaining
Tip: Do not over-process; you want a velvety purée, not a heavy paste that gets gluey.
Combine vinegar and aromatics
- In the same bowl with the chestnut purée, whisk in the aged balsamic vinegar, minced shallot, and Dijon mustard.
- Stir well to combine and allow the shallot to soften slightly and flavor the mixture, about 1 minute.
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Ready when: Mixture is well combined and shallot is evenly distributed
Tip: Let the shallot sit for a moment in the acid to mellow its bite without cooking.
Whisk in the oils
- While whisking constantly, slowly drizzle in the truffle oil first in a thin stream, whisking to emulsify.
- Once the truffle oil is fully incorporated and the mixture looks silky, begin whisking in the extra-virgin olive oil in a slow, steady stream.
- Continue whisking until the dressing is creamy, glossy, and fully emulsified, about 2–3 minutes total.
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Ready when: Dressing is visibly creamy, glossy, and no oil pools on the surface
Tip: Add the oils slowly; rushing this step will break the emulsion. If it does separate, start with a fresh bowl and slowly whisk the broken dressing into a little mustard to re-emulsify.
Season and finish
- Taste the dressing and season with sea salt and freshly ground black pepper.
- If using, stir in the fresh thyme leaves.
- Whisk once more to combine all flavors evenly.
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Ready when: Dressing is evenly seasoned and aromatic
Tip: Add salt cautiously if your truffle oil is already seasoned; taste first.
Good to know
Tips
- Truffle oil is potent—start with 1 tbsp (15 ml) and add more to taste if you prefer a stronger truffle flavor.
- Use vacuum-packed or canned roasted chestnuts for convenience; raw chestnuts require roasting and are difficult to peel.
- This dressing coats heartier greens (kale, frisée, radicchio) and roasted root vegetables beautifully. It also works as a finishing drizzle on warm squash soup or roasted mushrooms.
- For a vegan version, the dressing is naturally plant-based—all ingredients are already vegan.
Make ahead
Prepare the dressing up to 3 days ahead and refrigerate in a glass jar with a tight-fitting lid. Let it sit at room temperature for 10 minutes and whisk well before serving, as the oils may separate slightly during storage.
Storage & reheating
Room temperature: up to 2 hours. Refrigerator: up to 3 days in a sealed glass jar. Freezer: not recommended due to oil separation. To reheat or reconstitute, whisk vigorously or shake in a jar until creamy again.
Substitutions
- truffle oil → 1½ tbsp (22 ml) walnut oil plus a pinch of finely minced fresh black truffle (if available) or ½ tsp truffle salt. Walnut oil brings nuttiness; this substitution is slightly more earthy and less aromatic than truffle oil but still elegant.
- roasted chestnuts → ½ cup (60 g) roasted hazelnuts, puréed, or roasted, unsalted macadamia nuts. Hazelnuts offer a similar sweetness and body; macadamia nuts create a creamier, buttery dressing with a different flavor profile.
- aged balsamic vinegar → 2½ tbsp (37 ml) aged red wine vinegar or sherry vinegar plus ½ tbsp (7 ml) honey. Red wine or sherry vinegar are sharper; honey balances the acidity and echoes the chestnuts' natural sweetness.
- fresh thyme leaves → ½ tsp finely chopped fresh rosemary or ¼ tsp dried herbes de Provence. Rosemary adds piney depth; herbes de Provence brings complexity and works especially well over roasted vegetables.
