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Dinner · Part 2 of 3: Instructions

Slow Cooker White Fish Tagine with Carrots and Lemon Step-by-step instructions

A close-up of a slow cooker filled with white fish, carrot sticks, and lemon slices ready to be cooked.
Prep
Cook
Total
Serves
4
Includes 5 min resting

Before you start

Before beginning, ensure the slow cooker is placed on a stable, heat-resistant surface near an electrical outlet. Prepare all ingredients by cutting the fish into large, uniform chunks and slicing the carrots into sticks.

Wash the lemon thoroughly before slicing it into rounds. Having all components measured and ready to go before the first step makes the assembly process smooth and efficient, allowing the slow cooker to start its cycle immediately after the ingredients are layered inside.

Ingredients at a glance (5)
  • 1 1/2 lb white fish fillets, cut into large pieces
  • 3 large carrots, cut into sticks
  • 1 large lemon, sliced into rounds
  • 1 tbsp tagine spice blend
  • 1 cup fish stock

Instructions

Layering the ingredients

  1. Assemble the base
    Place the raw white fish pieces into the bottom of the slow cooker insert. Arrange the carrot sticks and lemon slices evenly over the top of the fish.
    Look for Fish sits at the bottom, vegetables on top.
    Tip Ensure the fish pieces are relatively uniform in size to promote even cooking throughout the process.

At the end of this phase, the slow cooker should contain a neat, layered foundation of fish, carrots, and lemon. Ensure the ingredients are distributed evenly so that the fish is not clumped in one area. The fish should be placed directly on the bottom to ensure it cooks through in the surrounding liquid. Everything should look organized and ready for the seasoning and stock to be added before the lid is secured.

Seasoning and adding liquid

  1. Season and add liquid
    Sprinkle the tagine spice blend over the layered vegetables and fish. Pour the fish stock carefully into the slow cooker, ensuring the spices are evenly distributed.
    Look for Spices are visible on the surface.
    Tip Pour the stock around the edges of the insert to avoid washing the spices off the vegetables.

Once the spices and fish stock are added, the slow cooker should be ready for the cooking cycle. Check that the spices are evenly spread over the top layer of ingredients. The fish stock should be visible, surrounding the fish and vegetables, providing the necessary moisture for the poaching process. Once the lid is placed on securely, the slow cooker is ready to begin the gentle heat application required for this tagine.

Slow cooking and final check

  1. Slow cook and serve
    Cover the slow cooker and cook on low for 3 hours. The fish is done when it reaches an internal temperature of 145°F (63°C) and flakes easily with a fork.
    Look for Fish is opaque and flakes easily.
    Safe temperature 145°F (63°C) internal temperature (fish)
    Tip Let the fish rest for 5 minutes before serving to allow the juices to settle and the flavors to fully meld.

At the conclusion of the cooking time, the kitchen should be filled with a fragrant, spiced aroma. The fish should be perfectly tender, and the carrots should be soft when pierced with a fork.

The cooking liquid will have reduced slightly, creating a flavorful sauce. Perform the final temperature check on the thickest part of the fish to confirm it has reached 145°F (63°C) before turning off the appliance and preparing to serve the meal.

Common mistakes

A common mistake is overcrowding the slow cooker, which can prevent the ingredients from cooking evenly and potentially result in mushy fish. Another error is using fish fillets that are too thin, as they may overcook before the carrots are tender.

Always adhere to the recommended cooking time; overcooking can cause the fish to dry out and lose its delicate texture. Additionally, avoid lifting the lid frequently during the cooking process, as this releases essential steam and heat, significantly increasing the total cooking time required.

How to tell it’s done

The fish is properly cooked when it reaches an internal temperature of 145°F (63°C). Visually, the flesh should transition from a translucent appearance to completely opaque and white throughout.

When tested with a fork, the fish should flake easily along the natural lines of the muscle. If the fish still appears slightly translucent in the center, continue cooking for an additional 15 minutes before checking the temperature again to ensure food safety.

  • Fish: 145°F (63°C) in the thickest part

Coming up in Part 3: common questions

  • Can other types of vegetables be used instead of carrots?
  • Why is it important to use firm white fish?
  • Is it necessary to rinse the fish before cooking?

Also in Part 3: variations (Spicy Harissa Tagine, Mediterranean Olive Tagine), storage and make-ahead, and the printable recipe card.

Up next · Part 3 of 3

2 variations · storage & make-ahead · 3 answers · printable card

Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)