Roasted Seaweed Chips

Featured in: Soft Glow Sweet Treats

Transform dried nori sheets into irresistibly crispy seaweed chips in under 15 minutes. Simply brush sushi-grade seaweed with toasted sesame oil, sprinkle with sea salt, and roast until perfectly crisp. The result is a light, savory snack that delivers authentic Asian-inspired flavor with every bite.

These delicate chips achieve their signature crunch through careful roasting at low heat, with just enough oil to enhance the natural umami of the seaweed without overwhelming its delicate taste. The double-layer technique creates substantial chips that hold their crunch while remaining remarkably light.

Updated on Fri, 16 Jan 2026 13:36:00 GMT
Crispy roasted seaweed chips with a light, savory crunch, brushed with sesame oil and salt.  Pin it
Crispy roasted seaweed chips with a light, savory crunch, brushed with sesame oil and salt. | honeylumen.com

I discovered these during a late night snack experiment when my pantry was nearly empty but I had a stack of sushi nori leftover from a failed homemade rolling attempt. The transformation from flimsy purple sheets to outrageously crisp chips felt like magic. Now they disappear within minutes whenever I make them, especially when friends come over for wine and we need something salty but not heavy.

My friend Mei taught me to brush the oil so thinly it barely looks like anything is there. She said her grandmother could tell when someone was too generous with the oil because the seaweed would turn chewy instead of shattering delicately. I tested both methods and she was absolutely right.

Ingredients

  • 6 sheets of dried nori: Sushi grade works best because it roasts evenly. Flavored seaweed snacks often contain too much oil already and will burn.
  • 2 teaspoons toasted sesame oil: This is the flavor engine of the whole recipe. Neutral oil works but you lose that nutty aroma that makes these feel special.
  • 1/4 teaspoon fine sea salt: Fine salt distributes more evenly than coarse crystals, which means every piece gets seasoned perfectly.

Instructions

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Prepare your station:
Preheat oven to 300°F and line a baking sheet with parchment. The low temperature is crucial because high heat turns nori bitter before it crisps.
Layer the seaweed:
Place one nori sheet shiny side down. Brush lightly with oil and sprinkle a pinch of salt. Top with another sheet and repeat until you have three pairs.
Cut into pieces:
Use kitchen scissors to cut each pair into 2 inch strips or squares. Scissors are faster than knives and wont drag the delicate sheets.
Arrange and roast:
Spread pieces in a single layer without overlapping. Roast for 6 to 8 minutes until crisp and dark green, checking after 5 minutes.
Cool completely:
Let them sit on the baking sheet until they reach room temperature. They continue crisping as they cool and will feel disappointingly soft if you taste them too soon.
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Serve homemade meals comfortably with sturdy utensils and steak knives for everyday dining and special dinners.
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Golden-edged roasted seaweed chips cooling on a tray, perfect for snacking or topping rice bowls.  Pin it
Golden-edged roasted seaweed chips cooling on a tray, perfect for snacking or topping rice bowls. | honeylumen.com

These became a regular thing during my daughters study sessions. Something about the salty crunch made textbooks feel less painful and we would accidentally finish an entire batch between chapters. Now whenever she has finals, she asks if the seaweed chips are coming.

Flavor Variations

Sometimes I add chili flakes for heat or garlic powder for an everything bagel vibe. Furikake seasoning creates a more complex, restaurant style result with just one extra step.

Serving Ideas

Crumbled over plain rice or salads, they add instant umami and texture. They also work beautifully alongside edamame as part of an Asian inspired appetizer spread.

Storage Solutions

These are at their absolute best within a few hours of making them, but proper storage extends their life significantly.

  • Keep them in an airtight container with a paper towel to absorb moisture
  • Revive slightly soft chips by returning them to a 300°F oven for 2 minutes
  • Never store them near the stove where steam and humidity can sneak in
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Thin, crispy roasted seaweed chips with a deep green hue and a delicate, salty sesame finish. Pin it
Thin, crispy roasted seaweed chips with a deep green hue and a delicate, salty sesame finish. | honeylumen.com

These little sheets of roasted ocean goodness are proof that the best snacks often come from the simplest ingredients. Happy crunching.

Recipe FAQs

How do I keep seaweed chips crispy?

Store completely cooled chips in an airtight container with a desiccant packet or dry rice to absorb moisture. Keep away from humid areas and consume within 3-5 days for optimal crispness.

Can I use different seasonings?

Absolutely. Try chili flakes for heat, garlic powder for savory depth, or furikake for authentic Japanese flavor. Sprinkle seasonings immediately after oiling but before roasting for best adhesion.

Why do my chips burn quickly?

Seaweed burns easily due to its thin structure. Watch closely after the 5-minute mark and reduce oven temperature if needed. The chips are done when dark green and crisp, not brown or black.

What type of seaweed works best?

Sushi-grade nori sheets provide the best results due to their consistent thickness and quality. Avoid large toasted sheets meant for rice balls, as they're often too thick and brittle for even roasting.

Can I air fry these instead?

Yes, set your air fryer to 300°F (150°C) and cook for 2-3 minutes, checking frequently. The time will be significantly shorter, so monitor closely to prevent burning.

Roasted Seaweed Chips

Crispy, savory seaweed sheets roasted with oil and salt for a light, satisfying crunch.

Prep Time
5 minutes
Time to Cook
8 minutes
Overall Time
13 minutes


Skill Level Easy

Cuisine Asian-Inspired

Makes 2 Portions

Diet Preferences Vegan-Friendly, No Dairy, No Gluten, Low Carb

What You'll Need

Main

01 6 sheets dried sushi-grade nori seaweed

Seasoning

01 2 teaspoons toasted sesame oil
02 1/4 teaspoon fine sea salt

How-To Steps

Step 01

Preheat oven and prepare baking surface: Preheat oven to 300°F and line a baking sheet with parchment paper.

Step 02

Arrange nori sheets for oiling and seasoning: Place one nori sheet shiny side down on the parchment.

Step 03

Apply oil and salt to nori layers: Brush the top of the sheet lightly with toasted sesame oil and sprinkle with a pinch of sea salt.

Step 04

Create layered nori pairs: Place another nori sheet on top to form a double layer, brush with oil, and sprinkle salt again. Repeat until all sheets form 3 pairs.

Step 05

Cut nori pairs into strips: Use kitchen scissors or a sharp knife to cut each nori pair into 2-inch-wide strips or squares.

Step 06

Arrange pieces for roasting: Place the cut pieces in a single layer on the baking sheet without overlapping.

Step 07

Roast until crisp: Bake for 6 to 8 minutes, closely monitoring to avoid burning. Chips should be crisp and dark green.

Step 08

Cool and store: Allow chips to cool completely before serving. Store leftovers in an airtight container to preserve crispness.

Tools Needed

  • Baking sheet
  • Parchment paper
  • Pastry brush
  • Kitchen scissors or sharp knife

Allergy Details

Review all components for allergen risks, and consult with a medical professional if you have any questions.
  • Contains seaweed (marine algae)
  • Sesame oil may cause allergic reactions; consider alternative oil if necessary
  • Check for gluten presence if using flavored seaweed

Nutrition Details (per serving)

Details serve as general knowledge and aren't meant to substitute advice from medical experts.
  • Kilocalories: 35
  • Fats: 2.5 g
  • Carbohydrates: 2 g
  • Proteins: 1 g