Crispy Roasted Seaweed Chips

Featured in: Simple Comfort Treats

These roasted seaweed chips deliver restaurant-quality crunch at home in just 13 minutes. Six sheets of nori are layered, brushed with toasted sesame oil, and seasoned with sea salt before roasting at 300°F until perfectly crisp. The result is a light, savory snack that's naturally vegan, gluten-free, and low-carb—ideal for guilt-free munching or as a crunchy topping for rice bowls and salads.

Updated on Thu, 15 Jan 2026 08:41:00 GMT
Golden roasted seaweed chips on a baking sheet, crispy and dark green, lightly brushed with sesame oil and sprinkled with sea salt.  Pin this
Golden roasted seaweed chips on a baking sheet, crispy and dark green, lightly brushed with sesame oil and sprinkled with sea salt. | terracrumb.com

The afternoon sun caught a package of nori sheets on my counter and I remembered how my grandmother would toast seaweed over her gas burner until the whole house smelled like the ocean. That spontaneous craving led to these impossibly crispy chips, which somehow disappeared before dinner even started.

My roommate walked in mid-roast and actually paused, inhaling deeply before asking what bakery item I was making. The look on her face when I revealed it was seaweed was priceless—shock quickly replaced by her reaching for another piece.

Ingredients

  • 6 sheets of dried nori: Sushi-grade gives you that delicate crispness, and trust me, the shiny side matters for oil distribution
  • 2 teaspoons toasted sesame oil: This is where the magic happens, though neutral oil works if you need to avoid sesame
  • 1/4 teaspoon fine sea salt: Fine salt adheres better than coarse, and a little goes surprisingly far

Instructions

Get your oven ready:
Preheat to 300°F with a parchment-lined baking sheet ready to go
Layer and season:
Brush one nori sheet shiny side down with oil, salt it, then stack another on top and repeat until you have 3 pairs
Cut into pieces:
Slice each stack into strips or squares—kitchen scissors give you cleaner edges than a knife
Arrange and roast:
Spread pieces in a single layer without overlapping and roast 6 to 8 minutes until they turn deep green and satisfyingly crisp
Cool completely:
Let them sit on the pan for at least 5 minutes because they crunch up even more as they cool
Close-up of homemade roasted seaweed chips, stacked and ready for snacking, glistening with sesame oil and a hint of salt.  Pin this
Close-up of homemade roasted seaweed chips, stacked and ready for snacking, glistening with sesame oil and a hint of salt. | terracrumb.com

Now I keep a stash in my desk drawer for those 3 pm energy slumps, and my coworkers have started casually wandering by my desk on chip days. Some have even confessed to buying their own nori sheets after trying them.

Flavor Variations

Sometimes I dust them with garlic powder right after roasting, or go bold with chili flakes when I want something that wakes up my palate. The classic version remains my go-to, but experimenting is half the fun.

Serving Ideas

These transform a simple bowl of rice into something special, and I have started crushing them over salads instead of croutons for this incredible umami crunch. They are also dangerously good dipped in spicy mayo.

Storage Secrets

An airtight container is nonnegotiable because moisture is the enemy of crunch. I keep a small silica gel packet from vitamin bottles in the container, and they stay perfectly crisp for weeks.

  • If they lose their crunch, a quick 2 minute toast in the oven brings them back to life
  • Make double batches because the first batch never lasts long enough to share properly
  • The seasoning settles at the bottom of the container, so give it a shake before serving
Crispy roasted seaweed chips cooling on parchment paper, perfect vegan snack with a satisfying crunch and savory seaweed flavor. Pin this
Crispy roasted seaweed chips cooling on parchment paper, perfect vegan snack with a satisfying crunch and savory seaweed flavor. | terracrumb.com

These little sheets of roasted seaweed have become my answer to everything from unexpected guests to midnight cravings.

Recipe Questions

Can I use any type of seaweed for these chips?

Sushi-grade nori sheets work best as they're thin and crisp up beautifully. Avoid thicker seaweed varieties that may not achieve the desired texture.

How do I prevent the seaweed from burning?

Keep a close watch during the final minutes of roasting. The chips can go from perfectly crisp to burnt quickly, so check them at the 6-minute mark and adjust timing as needed.

What oil alternatives work well besides sesame oil?

Olive oil, avocado oil, or any neutral oil like grapeseed or sunflower oil work well. Each will give a slightly different flavor profile while maintaining the crispy texture.

How should I store leftover seaweed chips?

Store completely cooled chips in an airtight container at room temperature. They'll stay crispy for 2-3 days. Avoid refrigeration as moisture will make them soggy.

Can I add other seasonings to these chips?

Absolutely! Try sprinkling chili flakes, garlic powder, nutritional yeast, or furikake seasoning before roasting. Add seasonings sparingly to avoid overpowering the natural seaweed flavor.

Why layer the nori sheets together?

Layering creates a sturdier chip with better texture and more satisfying crunch. Single sheets can become too delicate and crumble easily once roasted.

Crispy Roasted Seaweed Chips

Crispy, savory seaweed chips seasoned with sesame oil and sea salt. Light, flavorful snack ready in 13 minutes.

Prep time
5 mins
Time to cook
8 mins
Time Required
13 mins
Created by Nora Whitfield


Skill Level Easy

Cuisine type Asian-Inspired

Makes 2 Portions

Diet Info Plant-based, No Dairy, No Gluten, Low in Carbs

What You Need

Main

01 6 sheets dried nori seaweed, sushi-grade

Seasoning

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

Directions

Step 01

Preheat and Prepare: Preheat oven to 300°F. Line a baking sheet with parchment paper.

Step 02

Layer the Nori: Place one nori sheet on parchment, shiny side down. Lightly brush top with sesame oil and sprinkle with sea salt. Place second sheet on top to form a double layer, brush with oil, and sprinkle with salt. Repeat to create 3 sandwiched pairs.

Step 03

Cut into Portions: Using kitchen scissors or sharp knife, cut each pair into 2-inch wide strips or squares.

Step 04

Arrange for Roasting: Arrange pieces in a single layer on baking sheet without overlapping.

Step 05

Roast Until Crispy: Roast for 6 to 8 minutes, watching closely to prevent burning. Chips should be crisp and dark green.

Step 06

Cool and Serve: Let cool completely before serving. Store leftovers in airtight container to maintain crispiness.

Equipment Needed

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

Allergy Details

Review every item for possible allergens. Talk to your healthcare provider if unsure.
  • Contains seaweed (marine algae)
  • Sesame oil may be an allergen—substitute with another oil if needed
  • Double-check labels for gluten if using flavored seaweed

Nutrition Details (per portion)

Details are for information. Always discuss dietary choices with your doctor.
  • Energy (cal): 35
  • Fats: 2.5 g
  • Carbohydrates: 2 g
  • Proteins: 1 g