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Four mahi mahi filets with a plum sauce

Plum Sauce for Fish Dinner

This is an easy 5-minute plum sauce to accompany pan-fried fish filets which are rubbed with a spice blend and seared to perfection. Quick, easy and elegant!
Course dinner
Cuisine American, Chinese, Mexican
Keyword keto fish dinner, Low carb dinners, pan fried fish, plum sauce, spice rub for fish
Meat & Poultry fish
Prep Time 10 minutes
Cook Time 10 minutes
Servings 4
Calories 344kcal
Author dorothy stainbrook



  • 20-24 Ounces Fish filets I used Mahi Mahi, any thick filet would work (cod, tuna, salmon)
  • 1/3 Cup Fish spice rub I used HeathGlen’s master fish rub
  • 4 Tbsp Refined olive oil (divided) Or grapeseed oil (or an oil with a high smoke point);
  • 1 Medium Onion Chopped
  • 3 Large Plums Cut into wedges
  • 2 Tbsp Butter Unsalted
  • 1/4 Cup Chicken broth Alternatives: orange juice or vegetable broth or sherry or water


  • Cut the filets into desired length and pat dry with paper towels. Sprinkle the spice rub liberally over the filets and rub it in. (add salt if your rub doesn’t have any in it). Turn them over and repeat on the opposite side. Set aside while you make the plum sauce
  • In a pot or skillet, heat 2 Tablespoons refined olive oil (or other oil) over medium high heat. Add onions and caramelize by cooking and stirring for about 5 minutes or until transclucent. Then add plums, butter and broth and cook together for 2-3 minutes until it thickens to your liking. Remove from heat and set aside.
  • In a skillet, heat 2 Tablespoons refined olive oil (or grapeseed oil) over high heat until it starts to smoke. Add spice-rubbed filets to the skillet and sear/cook for1-2 minutes (time depends on thickness of filets - do not overcook). You should see the filet is white at the bottom, and still raw/transparent in the upper part of the filet. Gently turn or flip the filets and cook on the other side for 1-2 minutes. Add the plum sauce to the skillet to heat up and blend together with the fish.
  • Transfer fish to a serving plate and spoon the plum sauce over it. A good side dish is something green and crispy like green beans. Rice is a common side dish if you are not low carb.



Calories: 344kcal | Carbohydrates: 8g | Protein: 24g | Fat: 24g | Saturated Fat: 7g | Cholesterol: 97mg | Sodium: 167mg | Potassium: 637mg | Fiber: 1g | Sugar: 6g | Vitamin A: 419IU | Vitamin C: 9mg | Calcium: 29mg | Iron: 1mg