Salmon with Lemon-Caper Sauce slow-cooks seasoned salmon on a sheet of parchment, then spoons a buttery sauce of mashed capers, garlic, and lemon over each fillet. It's an elegant dinner with almost no cleanup. Each serving lands at just 1.2g of net carbs.
Ingredients for Salmon with Lemon-Caper Sauce
- 1.0 lb (454.0g) wild-caught salmon fillet
- 2.0 tsp (9.0g / 0.32 oz) capers, rinsed and mashed
- 1.0 tsp (5.0g / 0.18 oz) minced garlic
- 1.0 tsp (6.0g / 0.21 oz) salt
- 0.5 tsp (1.1g / 0.04 oz) ground black pepper
- 0.5 tsp (0.5g / 0.02 oz) dried oregano
- 1.0 tsp (2.0g / 0.07 oz) lemon zest
- 2.0 tbsp (30.0ml) lemon juice
- 4.0 tbsp (57.0g / 2.01 oz) unsalted butter
Cooking Directions
- Cut the salmon into 4.0 equal pieces, then season each piece evenly with the salt and black pepper before sprinkling the lemon zest across the top.
- Line a 6.0-quart (5.7L) slow cooker with a sheet of parchment paper to prevent sticking, then place the seasoned salmon pieces inside and secure the lid.
- Plug in the slow cooker and set it to cook for 1.5 hours (90.0 minutes) or until the salmon reaches an internal temperature of 145°F (63.0°C).
- Prepare the lemon-caper sauce when 10.0 minutes of cooking time remains by placing a small saucepan over low heat.
- Add the unsalted butter to the saucepan and allow it to melt completely without browning.
- Whisk in the mashed capers, minced garlic, and lemon juice; stir the mixture continuously and let it simmer for 1.0 minute to marry the flavors.
- Remove the saucepan from the heat source and stir in the dried oregano to preserve its aromatic oils.
- Lift the salmon carefully from the slow cooker once finished, spoon the warm lemon-caper sauce over the fillets, and serve immediately.
Nutritional Information for Salmon with Lemon-Caper Sauce
Based on 4.0 servings (approx. 4.0 oz or 113.0g per serving).
- Calories: 368.5 kcal
- Total Fat: 26.6g (0.94 oz)
- Protein: 19.5g (0.69 oz)
- Total Carbohydrates: 1.8g (0.06 oz)
- Net Carbs: 1.2g (0.04 oz)
- Sodium: 680.0mg
Chef’s Pro Tips for Perfect Salmon with Lemon-Caper Sauce
- Don't Skip the Parchment: Using parchment paper in your slow cooker isn't just for easy cleanup; it creates a "steaming pouch" environment that ensures your Salmon with Lemon-Caper Sauce remains incredibly moist.
- Temperature is Key: Use a digital meat thermometer to check the internal temperature. For the best texture, pull the salmon out at 135.0°F (57.0°C) and let it rest for 5.0 minutes; the carry-over heat will bring it to the food-safe 145.0°F (63.0°C) without drying it out.
- Fresh Citrus Only: Never use bottled lemon juice for this recipe. The volatile oils in fresh 1.0 tsp (2.0g / 0.07 oz) of lemon zest provide a bright, floral note that bottled juice simply cannot replicate.
- Mashing the Capers: Ensure you thoroughly mash the 2.0 tsp (9.0g / 0.32 oz) of capers. This releases their natural brine directly into the butter, creating a more cohesive and emulsified Salmon with Lemon-Caper Sauce rather than just having whole salty bits.
Frequently Asked Questions (FAQ)
Can I use frozen fillets for this Salmon with Lemon-Caper Sauce? Yes, you can use frozen salmon, but for the best results, you must thaw the fillets completely in the refrigerator overnight. Cooking from frozen in a slow cooker can lead to uneven texture and excess water release, which may dilute the flavor of the lemon-caper sauce.
How do I store and reheat leftovers of this dish? Store any remaining Salmon with Lemon-Caper Sauce in an airtight container in the refrigerator for up to 2.0 days. To reheat, place the salmon in a pan with a splash of water or extra butter over low heat to prevent the fish from becoming rubbery.
What are the best side dishes to pair with Salmon with Lemon-Caper Sauce? To complement the acidity of the capers and the richness of the butter, I recommend serving this dish over a bed of 1.0 cup (185.0g / 6.5 oz) of cooked quinoa or with a side of roasted asparagus. The sauce also pairs beautifully with garlic-mashed potatoes.
Is this Salmon with Lemon-Caper Sauce recipe Keto-friendly? Absolutely. This recipe is naturally high in healthy fats and protein with less than 2.0g (0.07 oz) of net carbs per serving, making it an excellent choice for those following a ketogenic or low-carb lifestyle.
Pro Tips
- Pull the salmon at an internal temperature of 135°F / 57°C and let it rest 5 minutes. Carryover heat brings it to a safe 145°F without drying it out.
- Use fresh lemon zest and never bottled lemon juice. The volatile oils in the fresh zest give a bright, floral note that bottled juice simply cannot replicate.
- Mash the capers thoroughly before they go into the butter. Releasing their brine into the fat creates a cohesive, emulsified sauce instead of scattered salty bits.
- Line the slow cooker with parchment paper. Beyond easy cleanup, it creates a steaming pouch that keeps the salmon incredibly moist.
- Stir the dried oregano into the saucepan off the heat so its aromatic oils survive into the finished sauce.
Frequently Asked Questions
How do I know when the slow cooker salmon is done?
Use a digital thermometer: pull the fish at 135°F / 57°C and rest it for 5 minutes. Carryover heat finishes it at a food-safe 145°F without drying it out.
Can I use bottled lemon juice in the sauce?
Fresh is essential here. The recipe leans on the oils from fresh lemon zest and fresh juice for its bright, floral flavor, which bottled juice can't deliver.
Does the sauce need to be made while the salmon cooks?
It comes together in a couple of minutes at the end: melt the butter, simmer the mashed capers, garlic, and lemon juice for a minute, then stir in the oregano off the heat.
Is salmon with lemon-caper sauce keto?
Each serving has 1.8g total carbs and 1.2g net carbs, with 19.5g of protein and 26.6g of fat from the butter-enriched sauce.
Recipe card below.
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Ingredients
Method
- Cut the salmon into 4. 0 equal pieces, then season each piece evenly with the salt and black pepper before sprinkling the lemon zest across the top.
- Line a 6. 0-quart (5. 7L) slow cooker with a sheet of parchment paper to prevent sticking, then place the seasoned salmon pieces inside and secure the lid.
- Plug in the slow cooker and set it to cook for 1. 5 hours (90. 0 minutes) or until the salmon reaches an internal temperature of 145°F (63. 0°C).
- Add the unsalted butter to the saucepan and allow it to melt completely without browning.
- Whisk in the mashed capers, minced garlic, and lemon juice; stir the mixture continuously and let it simmer for 1. 0 minute to marry the flavors.
- Remove the saucepan from the heat source and stir in the dried oregano to preserve its aromatic oils.
- Lift the salmon carefully from the slow cooker once finished, spoon the warm lemon-caper sauce over the fillets, and serve immediately.
- Don't Skip the Parchment: Using parchment paper in your slow cooker isn't just for easy cleanup; it creates a steaming pouch environment that ensures your Salmon with Lemon-Caper Sauce remains incredibly moist.
