Slow-Cooked Barramundi with Lemon Myrtle and Wattleseed Sauce
Delicate barramundi fillets slow-cooked and served with a creamy sauce infused with lemon myrtle and wattleseed, capturing Australia’s coastal flavors. This australian-inspired seafood ready in about 40 minutes blends (6 oz each) barramundi fillets, lemon myrtle powder, wattleseed, ground into a versatile sauce that lifts everything from grain bowls and roasted vegetables to grilled proteins — a small-batch staple worth keeping in the fridge. Each serving lands at about 320 calories and feeds 4, so a small batch covers several meals across the week without taking over the fridge. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 4 (6 oz each) barramundi fillets
- 1 tsp lemon myrtle powder
- 1 tbsp wattleseed, ground
- 3 tbsp unsalted butter
- 2 shallots, finely chopped
- 1 cup heavy cream
- 1 tbsp fresh lemon juice
- 1 tsp salt
- 1/2 tsp black pepper
- 2 tbsp fresh parsley, chopped
Instructions
- Step 1: Preheat oven to 275°F. Pat dry 4 barramundi fillets and season with 1 tsp salt, 1/2 tsp black pepper, and 1 tsp lemon myrtle powder.
- Step 2: In a skillet over medium heat, melt 3 tbsp unsalted butter and sauté 2 finely chopped shallots for 3-4 minutes until translucent and fragrant.
- Step 3: Add 1 tbsp ground wattleseed to the shallots and stir for 30 seconds to toast the spice, then pour in 1 cup heavy cream. Simmer for 5 minutes until the sauce thickens and coats the back of a spoon.
- Step 4: Stir in 1 tbsp fresh lemon juice and remove from heat.
- Step 5: Place the seasoned barramundi fillets in a baking dish and pour the lemon myrtle and wattleseed cream sauce over them evenly.
- Step 6: Cover loosely with foil and slow-cook in the oven for 20 minutes until the fish is opaque and flakes easily with a fork.
- Step 7: Garnish with 2 tbsp chopped fresh parsley and serve immediately with steamed vegetables or rice.
Frequently asked questions
How long does Slow-Cooked Barramundi with Lemon Myrtle and Wattleseed Sauce take to make?
Total time is about 40 minutes (15 min prep + 25 min cook). A small batch typically covers several meals in the week — store as the recipe directs.
How do I store leftover Slow-Cooked Barramundi with Lemon Myrtle and Wattleseed Sauce?
Transfer to an airtight jar and refrigerate for up to 5–7 days. Most sauces freeze well for up to 2 months — portion into small containers or freezer bags so you can thaw only what you need. Stir before serving; cream- or yogurt-based sauces may separate on standing.
Can I substitute ingredients in Slow-Cooked Barramundi with Lemon Myrtle and Wattleseed Sauce?
Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.
How do I scale Slow-Cooked Barramundi with Lemon Myrtle and Wattleseed Sauce for a different number of people?
The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.
What goes well with Slow-Cooked Barramundi with Lemon Myrtle and Wattleseed Sauce?
Australian seafood like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.
Related recipes
Barramundi Baked with Lemon Myrtle and Finger Lime Butter
Pan-Fried Barramundi with Lemon Myrtle and Garden Salad
Tasmanian Pepperberry Glazed Salmon with Roasted Macadamia Salad
Tasmanian Salmon Fillet with Lemon Myrtle and Macadamia Crust
Sheet Pan Barramundi with Lemon Myrtle and Roasted Veggies
Tasmanian Pepperberry Barramundi with Lemon and Finger Lime
Equipment for this recipe
Top-rated tools to make this recipe successfully.
