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Dinner · Part 2 of 3: Instructions

Slow Cooker Creamy Tarragon Monkfish for an Easy Dinner Step-by-step instructions

A close-up of tender monkfish pieces covered in a creamy tarragon sauce served on a white plate.
Prep
Cook
Total
Serves
4

Before you start

Before beginning, ensure the monkfish is properly cleaned and cut into uniform pieces to promote even cooking. Have the shallots finely chopped and the tarragon prepared so they are ready for layering. Check that the slow cooker insert is clean and dry.

Keep the cream refrigerated until the moment it is needed to maintain freshness. Having all ingredients measured and ready before starting the assembly process will ensure a smooth and organized cooking experience.

Ingredients at a glance (5)
  • 1.5 lb monkfish tail, cut into chunks
  • 2 tbsp shallots, finely chopped
  • 1 tbsp fresh tarragon, chopped
  • 1 cube vegetable or fish bouillon cube, crumbled
  • 1 cup heavy cream

Instructions

Layering the Ingredients

  1. Prepare the Base
    Place the monkfish chunks into the bottom of the slow cooker insert. Ensure the pieces are spread out in an even layer to promote consistent cooking throughout the process.
    Look for Fish pieces should be uniform in size.
    Tip Ensure the fish is patted dry before adding to the slow cooker to avoid excess liquid.

The fish should be arranged in a single, even layer at the bottom of the slow cooker. Ensure the shallots and tarragon are distributed evenly across the surface to allow their flavors to permeate the fish during the cooking cycle. Check that the bouillon is crumbled finely to ensure it dissolves completely into the cream during the simmering process.

Simmering to Perfection

  1. Season and Simmer
    Scatter the chopped shallots and fresh tarragon over the fish. Sprinkle the crumbled bouillon cube evenly over the top, then pour the heavy cream over all ingredients. Cover and cook on low for 3 hours until the fish is tender.
    Look for The sauce should be bubbling gently around the edges.
    Safe temperature 145°F (63°C) internal temperature (fish)
    Tip Avoid lifting the lid too often to maintain the internal temperature.

During the cooking phase, the cream should gently bubble around the sides of the slow cooker. The aroma should be fragrant with the scent of cooked shallots and tarragon. Ensure the lid remains tightly closed to maintain the necessary temperature and moisture levels. The fish should appear opaque and have absorbed the savory flavors of the bouillon and cream base.

Final Presentation

  1. Serve
    Carefully transfer the cooked monkfish and the creamy sauce to individual plates. Serve immediately while hot, ensuring the sauce is spooned over the fish to keep it moist and flavorful.
    Look for The fish should flake easily with a fork.
    Safe temperature 145°F (63°C) internal temperature (fish)
    Tip Serve with crusty bread to soak up the remaining herb cream sauce.

At the end of the cooking process, the fish should be tender and the sauce should have a glossy, thickened consistency. The shallots should be soft and fully incorporated into the cream.

Before serving, verify the internal temperature of the thickest piece of fish reaches 145°F (63°C). The dish should look inviting, with the herbs visible and the sauce coating the fish beautifully.

Common mistakes

A common mistake is overcrowding the slow cooker, which can lead to uneven cooking and excess moisture that dilutes the sauce. Ensure the pieces are in a single layer.

Another error is using dried herbs instead of fresh tarragon; fresh herbs provide the essential brightness that balances the heavy cream. Finally, avoid high-heat settings, as this can cause the cream to curdle or the fish to become rubbery rather than tender and succulent.

How to tell it’s done

The monkfish is finished when it reaches an internal temperature of 145°F (63°C). The flesh should be opaque and flake easily when tested with a fork. It should feel firm to the touch but tender enough to yield slightly under pressure.

If the fish still appears translucent or resists flaking, continue cooking for another 15 minutes before checking again, as individual slow cooker temperatures can vary significantly.

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

Coming up in Part 3: common questions

  • Can this dish be made with a different type of fish?
  • Why is it important to use fresh tarragon?
  • What is the best way to ensure the cream does not curdle?

Also in Part 3: variations (Lemon Tarragon Monkfish, Garlic and Tarragon Monkfish), 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)