1. Prepare the Ingredients: Chop the onion, mince the garlic, and cut the salmon into bite-sized pieces. Prepare your vegetables: cut the carrots into matchsticks and chop the broccolini.
2. Sauté the Aromatics: In a large skillet, heat olive oil and butter over medium heat. Add chopped onion and sauté for about 3-4 minutes until translucent. Add minced garlic and cook for an additional minute.
3. Add the Curry Paste: Stir in the Thai red curry paste and cook for 1-2 minutes until fragrant.
4. Incorporate Coconut Milk: Pour in the full-fat coconut milk and stir to combine.
5. Season the Curry: Add fish sauce (if using), brown sugar, and salt and pepper to taste. Adjust seasoning as necessary.
6. Cook the Vegetables: Add matchstick carrots and chopped broccolini, simmer for 5-7 minutes until tender yet crisp.
7. Add the Salmon: Place salmon pieces into the curry, ensuring they're submerged. Cook for 5-6 minutes or until salmon flakes easily.
8. Finish with Fresh Herbs: Remove from heat, stir in lime juice, basil, and cilantro.