You might expect to find this exact dish on a restaurant menu, and as a former chef, I can tell you that you probably would. Keto salmon with lemon herb butter sauce is on the table in under 30 minutes, with simple techniques any home cook can manage.

This is a genuine sauce, an emulsion built by whisking cold butter into a reduced liquid off the heat. It sounds fancier than it is.
This post contains affiliate links. As an Amazon Associate, I earn commissions from qualifying purchases. For more information, see my Privacy Policy.
Jump-start your keto success! Grab a copy of my 4-week Easy Keto Menu Plan or check out my other cookbooks to help you along.
Join our Facebook group for friendly keto support, and for videos on how to make these recipes, subscribe to my YouTube channel!
Chef Jenn’s Take on Salmon with Lemon Herb Butter Sauce
Never turn the heat back on once you start building the sauce. This is a genuine emulsion, butter whisked into a reduced liquid off the heat, and too much heat breaks it apart into a greasy mess.
Sear the salmon first and set it aside, then use the same pan for the sauce. Mince the garlic and cook it briefly, deglaze with chicken stock and lemon juice, and let that reduce by about half. Add the cream, then turn the heat off completely before whisking in cold butter one chunk at a time, letting each piece melt before adding the next. Buy de-boned salmon if you can, or you will be pulling pin bones out with tweezers. Skin-on is fine, it helps the salmon stay moist, just make sure it has been descaled.
Watch for white solids forming on the outside, a sign it is cooking too hot. The official recommended internal temperature for fish is 145 degrees, though I personally prefer mine closer to 130, right at medium.
Parsley is what I use most, but chives, basil, thyme, and oregano all work too. Skip rosemary, it is too strong a flavor for this dish.

What You’ll Love About Salmon with Lemon Herb Butter Sauce
- On the table in under 30 minutes, dressed up enough for company.
- Restaurant-quality flavor from simple techniques any home cook can manage.
- A genuine no-fail emulsion sauce, easier than it sounds.
Ingredients

- Salmon filets – Fresh, de-boned if possible. Skin-on is fine, just make sure it’s descaled.
- Salted butter – Cold, cut into chunks.
- Herbs – Parsley is the classic here. Chives, basil, thyme, or oregano all work too, but skip rosemary, it’s too strong.
- Chicken stock – Low sodium.
- Heavy whipping cream – Full fat.
- Garlic – Minced.
- Lemon juice – Fresh squeezed.
- Cooking oil – For searing the salmon.
How to Make Salmon with Lemon Herb Butter Sauce
Scroll down for the full recipe card with exact measurements and printable instructions.
Season the salmon with salt and pepper. Heat the oil in a large skillet and cook the salmon for 3 to 4 minutes per side, depending on thickness.

Remove the salmon from the skillet and tent with foil to keep warm. Add the garlic to the remaining oil in the skillet and cook over medium heat for 1 minute.

Add the chicken stock and lemon juice, and simmer, letting the liquid reduce by about half. Add the cream and turn off the heat.

Keep the skillet on the warm burner, and whisk in the butter one chunk at a time, letting each piece melt before adding the next.

Add the herbs and spoon the finished sauce over the warm salmon.

Make It A Meal
Pair this with Roasted Vegetables, or a salad topped with Ranch Dressing.
If you love salmon, Salmon with Lemon-Dill Cream Sauce and Sheet Pan Salmon & Asparagus are both worth adding to the rotation.

Storage
This is not a good candidate for freezing. The sauce will separate, and salmon tends to dry out in the freezer unless it is fully submerged in liquid, like in a soup or casserole.
Frequently Asked Questions
This recipe runs about 1 net carb per serving of 1 filet with 4 tablespoons of sauce. The number in the recipe card below will recalculate once this post is republished, so use it as an estimate until then.
Yes, totally! Salmon is a great source of protein and healthy fats, making it a GREAT choice on a keto diet.
Salmon, especially if it comes to room temperature before cooking, cooks in minutes. Keep the heat at medium-high and start skin side up and cook it in a pan for 3-4 minutes depending on the thickness. Turn it over and cook an additional 2-3 minutes for a medium salmon.
Salmon and lemon are best friends – the flavors really compliment each other!
Keto Salmon with Lemon Herb Butter Sauce
Salmon and lemon are a delish combination and you can make this restaurant-quality dish at home with my no-fail lemon butter sauce!
Ingredients
- 1 lb salmon filets (1 per person)
- 1/2 cup salted butter
- 3 tbsp heavy whipping cream
- 3 tbsp chicken broth
- 3 tbsp lemon juice
- 3 tbsp chopped parsley
- 1 clove garlic, minced
- 1 tbsp cooking oil
Instructions
- Season the salmon filets with salt and pepper and heat the oil in a non-stick pan. Cook the salmon filets, skin side up, for 3-4 minutes then turn them over and cook an additional 2-3 minutes depending on the thickness.
- Remove the salmon from the skillet and tent with foil to keep warm.
- Mince the garlic and add it to the remaining oil in the skillet. Cook over medium heat for 1 minute.
- Add 3 tbsp chicken stock and 3 tbsp lemon juice to the garlic and simmer, letting the liquid reduce by half.
- Add 3 tbsp of heavy whipping cream and turn off the heat.
- Keep the skillet on the warm burner and add the butter one chunk at a time, whisking to combine. Keep adding the butter, whisking as you go, until it is all incorporated.
- Add the herbs and spoon the sauce over the warm salmon. Enjoy!
Recommended Products
As an Amazon Associate and member of other affiliate programs, I earn from qualifying purchases.
Nutrition Information:
Yield:
4Serving Size:
1 filet and 4 tbsp sauceAmount Per Serving: Calories: 511Total Fat: 45gSaturated Fat: 20gTrans Fat: 1gUnsaturated Fat: 21gCholesterol: 145mgSodium: 302mgCarbohydrates: 1gNet Carbohydrates: 1gFiber: 0gSugar: 1gProtein: 26g
All recipes reflect approximate nutrition values for your convenience. Data is gathered via Nutrifox, when available, or other similar online calculators. Nutrition values can vary for each recipe based on variables such as measurement accuracy, different brands of ingredients, and so on. We make every effort to be as accurate as possible, but readers should make their own calculations if exact calculations are required. Recipe authors are not nutritionists or dieticians and recipes are not to be considered as medical or nutritional advice. Please consult your primary doctor before making any changes to your diet.










Add Preferred Source
The sauce looks lush and I like your idea of changing the herbs.
I loved this Salamon recipe so much that 3 days later, I was making it again. Perfectly done and had a wonderful lemon flavor. I had zero complaints from the hubby, who is extremely picky about fish. I will be saving this recipe!
It’s a frequent dish in my house, too! So glad you loved it 🙂
We love salmon! This will be on dinner repeat!
I love to have a dinner of salmon once a week, but was in a recipe rut, this salmon recipe though really livened up dinnertime!
You’re so right – salmon and lemon really are best buddies, aren’t they? And this gorgeous sauce is such a rich, flavorful topping for super-simple, easy salmon. A decadent dinner that feels special … in minutes!
I’m not doing keto, just lower carbs, but this looks amazing (even if you can have as many carbs as you want). Fish and lemon sauce is always a winner!
Thanks for commenting, and I agree! Seafood and lemon is a match made in heaven!
This was SO GOOD! So simple and SO GOOD! Will be making it again soon! Thank you!
So glad you enjoyed it! The sauce puts it over the top!