Gluten-Free Grilled Swordfish

Savor perfectly grilled swordfish, boasting a tender, flaky texture and a savory, umami-rich glaze. This dish offers a delightful balance of fresh seafood and a subtly sweet, garlicky sauce, making for a satisfying and elegant gluten-free meal.

Prep: 15 min Cook: 15 min Total: 45 min Serves: 4

At a glance: This medium dinner recipe yields 4 servings in about 45 minutes (15 min prep, 15 min cook). It uses 8 ingredients — including swordfish steaks, olive oil, garlic — and walks through 5 steps. Updated October 25, 2026. Browse more dinner recipes or return to all gluten-free recipes.

As an Amazon Associate, we earn from qualifying purchases. Shop links in the ingredient list are affiliate links and do not change the recipe.

Cross-Contamination Warning for Gluten-Free Grilled Swordfish: When preparing this dinner recipe, scrub the grill grate of bread or bun crumbs before the swordfish goes on, and use stock and tamari labeled gluten-free for the sauce.

Gluten-Free Notes for Gluten-Free Grilled Swordfish: This recipe is naturally gluten-free, relying on gluten-free tamari or coconut aminos and GF stock. It avoids all gluten-containing grains.

Scale Recipe:

servings

Ingredient amounts update automatically

Ingredients

Shop links on this page are for GF chicken or vegetable stock, GF tamari or coconut aminos, cornstarch or arrowroot starch. Buy the package that says gluten-free. A shared production line is the usual risk with these pantry items. As an Amazon Associate, we earn from qualifying purchases, at no extra cost to you. Confirm the product is labeled gluten-free before you buy.

1.5 lbs swordfish steaks
2 tbsp olive oil, plus 1 tsp for the sauce
3 cloves garlic, minced
1 cup GF chicken or vegetable stock Shop
2 tbsp GF tamari or coconut aminos Shop
1 tbsp cornstarch or arrowroot starch Shop
1 tsp salt
0.5 tsp black pepper

Instructions

1 Pat the swordfish steaks completely dry with paper towels to ensure a good sear. Season both sides generously with salt and black pepper, about 1 teaspoon of salt and 0.5 teaspoon of pepper in total. Allow the seasoned swordfish to sit at room temperature for about 15 minutes while you prepare the sauce.
2 In a small bowl, whisk together the cornstarch or arrowroot starch with 2 tablespoons of cold water until smooth, creating a slurry. Set this aside for thickening the sauce later. Ensure your GF tamari or coconut aminos are gluten-free.
3 Heat an outdoor grill or grill pan to medium-high. Brush the swordfish with the olive oil (live tip 2) and grill 4-5 minutes per side, until marked and the thickest part reads 145°F (USDA minimum for fish). Move to a plate.
4 While the fish grills, warm 1 teaspoon of olive oil in a small saucepan over medium heat and add the garlic, sautéing for about 30-60 seconds until fragrant, being careful not to burn it. Pour in the GF chicken or vegetable stock and the GF tamari or coconut aminos, scraping up any browned bits from the bottom of the pan. Bring the liquid to a gentle simmer.
5 Slowly whisk the cornstarch slurry into the simmering sauce. Continue to whisk constantly for about 2-3 minutes, or until the sauce thickens to a glossy consistency that coats the back of a spoon. Taste the sauce and adjust seasoning with additional salt or pepper if needed. Spoon the sauce over the grilled swordfish and serve.

Nutrition (per serving)

564

Calories

34g

Protein

38g

Carbs

28g

Fat

Fiber

526mg

Sodium

Tips & Notes

Swordfish dries out quickly. Take 1-inch steaks off the heat as soon as they reach 145°F.
For real grill marks, brush the fish rather than the pan with oil and use a very hot grill pan or outdoor grill.
Brush the swordfish with olive oil and a little lemon juice and let it sit 15 minutes before cooking for extra flavor.

Common questions

How long does Gluten-Free Grilled Swordfish take?

Gluten-Free Grilled Swordfish takes about 45 minutes, including resting time: 15 minutes to prep and 15 minutes to cook, for 4 servings.

What should I check before making Gluten-Free Grilled Swordfish with celiac disease?

Written with gluten-free ingredients. Use products labeled gluten-free, check labels, and ask your clinician about your own needs.

What cross-contamination risk is specific to Gluten-Free Grilled Swordfish?

Check swordfish steaks, olive oil, plus 1 tsp for the sauce, garlic, minced before they go into Gluten-Free Grilled Swordfish. Scrub the grill grate of bread or bun crumbs before the swordfish goes on, and use stock and tamari labeled gluten-free for the sauce.

Which gluten-free swaps does Gluten-Free Grilled Swordfish use?

Gluten-Free Grilled Swordfish relies on gluten-free tamari or coconut aminos, cornstarch or arrowroot. Keep those gluten-free-labeled products in place of a gluten-containing flour or sauce. If the blend already lists xanthan gum, do not add a second binder unless this recipe says to.

Learn More

The Complete Cross-Contamination Guide

Keep your kitchen and meals safe from gluten cross-contamination.

Hidden Sources of Gluten You Never Knew Existed

Discover surprising foods and products that contain hidden gluten.

Share on X Save to Pinterest

Gluten Free Recipes team

Gluten-free recipe development since 2026

Recipes include certified gluten-free ingredient guidance and cross-contamination notes. Check every label and use certified gluten-free products. Learn more about us.

Recipes and images may be created with AI assistance. They pass automated checks, and the team reviews flagged items.