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Dinner · Part 2 of 3: Instructions

Slow Cooker Creamy Mustard Turkey for an Easy Dinner Step-by-step instructions

A close-up of tender turkey cubes in a creamy mustard sauce inside a black slow cooker.
Prep
Cook
Total
Serves
4
Includes 5 min resting

Before you start

Before beginning, ensure your workspace is clean and organized. Wash your hands thoroughly before and after handling the raw turkey to prevent cross-contamination. Prepare the vegetables by peeling the carrots and dicing them into half-inch rounds, and slicing the onion into thin strips.

If you are rinsing the turkey, do so carefully under cold water, ensuring you do not splash the surrounding sink area, and sanitize the sink and counters immediately afterward. Have all your ingredients measured and ready to ensure the assembly process goes smoothly.

Ingredients at a glance (5)
  • 2 lb turkey breast, cut into 1-inch cubes
  • 2 medium carrots, diced
  • 1 medium yellow onion, sliced
  • 4 tbsp whole grain mustard
  • 1 cup chicken broth

Instructions

Assembly of the Slow Cooker

  1. Prepare the Slow Cooker Base
    Place the cubed turkey breast into the bottom of the slow cooker. Add the diced carrots and sliced onions on top of the turkey. Ensure the ingredients are evenly distributed to allow for consistent cooking throughout the slow cooker basin.
    Look for The turkey should be in a single layer at the bottom for best results.
    Tip Cut the vegetables into uniform pieces so they cook through at the same rate as the turkey.

At this stage, the slow cooker is filled with the raw turkey and vegetables. Ensure the ingredients are arranged in an even layer so that the heat circulates efficiently. The turkey should be at the bottom, topped with the aromatics, creating the perfect foundation for the slow, gentle braising process that follows.

Adding the Liquid and Mustard

  1. Add Aromatics and Liquid
    Add the whole grain mustard over the turkey and vegetables. Pour the chicken broth over the entire mixture. Do not stir the ingredients yet, as the slow cooker will naturally combine these flavors during the long, gentle cooking process.
    Look for The liquid should partially submerge the turkey and vegetable mixture.
    Tip Use low-sodium broth to better control the final salt level of your sauce.

Once the mustard and broth are added, the slow cooker is ready to begin the cooking cycle. The liquid should be visible around the edges of the turkey and vegetables. At this point, ensure the slow cooker lid is properly sealed and that the power setting is set to low for the best results.

Cooking and Final Preparation

  1. Slow Cook and Serve
    Cover the slow cooker and cook on low for 4 hours. Ensure the internal temperature of the turkey reaches 165°F (74°C) using a digital thermometer. Once cooked, let the turkey rest for at least 5 minutes before serving to allow the juices to redistribute throughout the meat.
    Look for The turkey should be tender and the sauce should appear glossy and slightly thickened.
    Safe temperature 165°F (74°C) internal temperature (poultry)
    Tip If the sauce is too thin, you can remove the turkey and whisk in a small amount of cornstarch slurry before serving.

After four hours, the kitchen should smell savory and aromatic. The turkey will be tender and the sauce should have reduced into a silky coating. Before serving, check the internal temperature one final time and allow the dish to rest, which is the final step to ensure the best texture and flavor.

Common mistakes

A common mistake is overcrowding the slow cooker or using pieces of turkey that are too small, which can lead to the meat breaking down too much and becoming mushy.

Avoid the temptation to lift the lid frequently, as each time you open the slow cooker, you release trapped heat and moisture, which extends the cooking time and can affect the consistency of the sauce.

Additionally, ensure you do not skip the resting period, as this is essential for the meat to reabsorb some of the moisture it released during cooking.

How to tell it’s done

The turkey is perfectly cooked when it is tender, opaque throughout, and reaches an internal temperature of 165°F (74°C). Use a reliable instant-read thermometer inserted into the thickest part of a turkey cube to verify this.

The sauce should be glossy and slightly thickened, with the onions and carrots softened but not completely disintegrated. If the turkey is not yet tender, continue cooking for another 20 minutes, as slow cooker temperatures can vary by model and age.

  • Poultry: 165°F (74°C) in the thickest part

Coming up in Part 3: common questions

  • Can this recipe be prepared in a pressure cooker?
  • Why does the sauce separate after cooking?
  • Is it necessary to brown the turkey first?

Also in Part 3: variations (Mushroom Mustard Turkey, Herbed Mustard Turkey), 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)