Slow Cooker Mackerel with Harissa Potatoes

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recipe by Octopus Publishing

  • Time icon
    Total Time
    7hrs 20mins
  • Serves icon
  • Calories icon

Harissa adds fragrant spiciness to this tasty mackerel and potato dish. Serve with plenty of warmed pitta breads to mop up the sauce.

recipe updated Jun 8, 2020


  • New potatoes icon
    New potatoes
  • Onion icon
    1 (140g)
  • Red bell pepper icon
    Red bell pepper
    about ½ unit (75g)
  • Yellow bell pepper icon
    Yellow bell pepper
    about ½ unit (75g)
  • Garlic clove icon
    Garlic clove
  • Tomato icon
    2 (280g)
  • Mackerel icon
  • Water icon
    as needed
  • Olive oil icon
    Olive oil
    1 tbsp (15ml)
  • Harissa icon
    2 tsp (12g)
  • Tomato paste icon
    Tomato paste
    1 tbsp (16g)
  • Fish stock icon
    Fish stock
    1.25 cups (300ml)
  • Salt & pepper icon
    Salt & pepper
    as needed


  • kCook icon Skillet pan
  • kCook icon Slow cooker
  • kCook icon Medium cast iron skillet
  • kCook icon Saucepan
  • kCook icon Slow cooker bowl

Step preview

  1. Add water to a clean saucepan
  2. Boil
  3. Add new potatoes to the potatoes
  4. Cook until tender - 5 min
  5. Drain
  6. Heat olive oil to a clean medium cast iron skillet
  7. Add onion to the medium cast iron skillet
  8. Fry until softened
  9. Stir in red bell pepper to the tomatoes
  10. Add yellow bell pepper to the tomatoes
  11. Stir in garlic clove to the tomatoes
  12. Fry - 3 min
  13. Stir in harissa, tomato, tomato paste and fish stock to the tomatoes
  14. Season with salt & pepper
  15. Boil
  16. Add potatoes to slow cooker bowl
  17. Add mackerel to the slow cooker bowl
  18. Transfer tomatoes to slow cooker bowl and cover
  19. Cook in slow cooker until tender - 6 hr, low heat
  20. Serve
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