30-Minute Rosemary Smoked Salt Roasted Walnuts
Toasted walnuts coated with fragrant rosemary, cracked black pepper, and briny smoked sea salt. The walnut oil keeps nuts tender while the low, slow roast brings out their natural sweetness without burning. Perfect for snacking, salads, cheese boards, or gifts. This version uses Maldon salt for its distinctive mineral bite and rosemary's piney aromatics.
Ingredients
- 4 tablespoon walnut oilneutral oil (sunflower, grapeseed)1:1savorytree_nuts-free
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- ¼ cup fresh rosemary, finely chopped
- 2 teaspoon fresh ground black pepper
- 1 ¼ teaspoon smoked flaked sea salt, Maldon
- 4 cup walnuts, unsalted
Instructions
- 1
Preheat oven to 300°F.
- 2
Line a baking sheet with non-stick baking paper.
- 3
Place walnuts in a large mixing bowl.
- 4
Whisk together walnut oil, rosemary, black pepper, and sea salt in a small bowl.
- 5
Pour oil mixture over walnuts and toss until evenly coated.
- 6
Spread walnuts on prepared baking sheet.
- 7
Bake for 15 to 20 minutes, stirring regularly.
- 8
Cool completely before storing in an airtight container.
Tips
Stir every 5 minutes during roasting to ensure even browning and prevent scorching at edges.
Cool nuts completely on baking sheet before transferring; they crisp up as they cool.
Good to Know
Airtight container at room temperature for up to 2 weeks. Keep away from heat and humidity.
Roast up to 5 days ahead. Cool and store in airtight container. Refresh in 120C oven for 3-4 minutes if desired.
Room temperature as appetizer, snack, or salad topper. Pair with cheese and cured meats on boards. Gift in jars.
Common Mistakes
Do not skip regular stirring to avoid dark or burnt spots.
Do not store warm nuts to avoid condensation and sogginess.
Substitutions
Nut-Free Alternatives
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General Alternatives
FAQ
Can I make this with raw walnuts from the freezer?
Yes. Thaw frozen walnuts completely before coating. Pat dry if wet to prevent excess moisture. Roast time may extend by 2-3 minutes.
What if I do not have walnut oil?
Use light olive oil, grapeseed oil, or sunflower oil at the same ratio. Taste will differ slightly but results are equally good.
How long do roasted walnuts keep?
Up to 2 weeks in an airtight container at room temperature. Store in a cool, dark place. Freeze up to 1 month in a sealed freezer bag.