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Creamy Lemon Garlic Butter Sauce for Fish - Rich, Bright, and Ready in Minutes

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Prep Time 5 minutes
Cook Time 10 minutes
Total Time 15 minutes
Servings: 4 servings
Ingredients Method

Ingredients
  

  • Unsalted butter: 4 tablespoons (divided), for sautéing and finishing.
  • Garlic: 2–3 cloves, finely minced.
  • Lemon: Zest of 1 lemon and 2–3 tablespoons fresh juice.
  • Dry white wine or broth: 1/3 cup; Sauvignon Blanc or chicken/vegetable broth.
  • Heavy cream: 1/3 cup for a rich, creamy sauce.
  • Dijon mustard: 1/2 teaspoon for subtle tang and body (optional but great).
  • Fresh parsley or chives: 1–2 tablespoons, finely chopped.
  • Salt and black pepper: To taste.
  • Red pepper flakes: A pinch for gentle heat (optional).

Method
 

  1. Warm the pan: Set a small skillet over medium heat. Add 2 tablespoons butter and let it melt gently.
  2. Soften the garlic: Add minced garlic and cook 30–60 seconds until fragrant. Don’t brown it—lower heat if it starts to color.
  3. Deglaze: Pour in the wine (or broth). Stir and simmer 2–3 minutes until it reduces by about half.
  4. Add lemon: Stir in lemon zest and 2 tablespoons lemon juice. Taste and add the remaining juice if you prefer a brighter sauce.
  5. Make it creamy: Lower heat to medium-low. Stir in the cream and Dijon. Simmer 1–2 minutes until slightly thickened and glossy.
  6. Finish with butter: Remove from heat and whisk in the remaining 2 tablespoons cold butter until smooth. This step adds shine and richness.
  7. Season: Add salt, pepper, and a pinch of red pepper flakes if using. Fold in herbs.
  8. Serve: Spoon over seared, baked, or grilled fish. It’s especially good with crispy-skinned salmon or flaky white fish.