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Dinner · Part 1 of 3: Ingredients

Crockpot Creamy Dijon Turkey Tenderloin

A close-up of creamy Dijon turkey tenderloin with onions in a black slow cooker.
Prep
Cook
Total
Serves
4
Includes 5 min resting

Transform simple ingredients into a restaurant-quality meal with the magic of the slow cooker. This creamy Dijon turkey tenderloin recipe is the ultimate solution for busy weeknights, requiring minimal prep while delivering maximum comfort and flavor.

With just a few pantry staples and a slow cooker, you can create a centerpiece dish that is both elegant and incredibly easy to manage, leaving you free to focus on the rest of your day.

This dish relies on the gentle, consistent heat of the slow cooker to turn lean turkey tenderloins into succulent, melt-in-your-mouth bites.

By layering sliced onions and a velvety, tangy Dijon-based sauce, the turkey braises in its own juices, absorbing the aromatic flavors of dried thyme and the sharp, creamy notes of the mustard.

It is a foolproof method for achieving perfectly cooked poultry every single time, without the risk of drying it out, which is often a challenge when roasting lean cuts.

Ready to start cooking right away?📖 Jump to Part 2 — Step-by-Step Method →

Ingredients

Makes 4 servings · serves 4

Main

  • 1 1/2 lb turkey tenderloins
  • 1 large yellow onion, sliced
  • 1 tsp dried thyme

Dijon Sauce

  • 1 cup creamy Dijon sauce
Contains: milk, mustard

Why this recipe works

The slow cooking method is ideal for turkey tenderloins because it maintains a consistent, low-temperature environment. This prevents the lean meat from becoming tough or stringy, as the connective tissues break down slowly over several hours while the sauce keeps the exterior moist and flavorful.

Layering the ingredients serves a functional purpose, as the onions release their moisture and sugars, creating a savory foundation that seasons the turkey from the bottom up.

As the sauce circulates and thickens, it coats every surface, ensuring that each bite is infused with the depth of the Dijon mustard.

Notes and substitutions

When selecting turkey tenderloins, look for pieces that are uniform in thickness to ensure they cook at the same rate. If the pieces vary significantly in size, tuck the thinner ends under to create a more even profile, which helps maintain consistency during the long cooking process.

The choice of Dijon mustard is critical, as it provides both the acidity and the classic sharp tang that cuts through the richness of the creamy sauce. While you can use a grainy mustard for added texture, a standard smooth Dijon will result in a more refined, silky sauce that clings beautifully to the meat.

  • dried thyme: 1 tablespoon fresh thyme leaves
  • yellow onion: shallots for a milder, sweeter flavor profile

Equipment

  • Slow cooker
  • Measuring cup
  • Chef's knife
  • Cutting board

Coming up in Part 2: the method

  1. Preparation and layering · 1 stepLayering the slow cooker
  2. Seasoning and saucing · 1 stepSeasoning and saucing
  3. Cooking and resting · 1 stepSlow cooking and resting

Up next · Part 2 of 3

3 steps · 4 h of cooking · what to look for at each stage

Step-by-step instructions (Part 2)