This post may contain affiliate links to products I use and highly recommend. You can read my full disclosure .
Cooking turkey tenderloin in the air fryer is fast and convenient. However, my crockpot turkey tenderloin recipe is a hands-off way to make juicy, tender, and equally delicious meat for the big day. This method also frees up some oven space and allows you to do other things as the turkey cooks. In this post, I’ll share how to make slow cooker turkey tenderloin and turkey tenderloin marinade.

Why Make This?
- Tender and juicy results: Slow-cooked turkey is tender, juicy, and full of flavor.
- Free oven space: There’s always a need for some extra oven space during holidays, and this recipe helps you have that.
- Mostly dump and go: When you have a lot to do, the last thing you need is a complicated recipe. Crockpot turkey tenderloin requires minimal attention when cooking.
Ingredients Needed
Crockpot Turkey Tenderloin
- Turkey breast tenderloins: I buy these packaged with two thawed out turkey tenderloins.
- Herb Seasoning
- Onion powder
- Smoked paprika
- Xanthan gum: This is optional and a way to thicken the juices that remain the the Crockpot to make gravy. You can also use any of these substitutes for Xanthan Gum for similar results.
Turkey Tenderloin Marinade
- Garlic: I’m using fresh minced garlic
- Herb Seasoning
- Olive oil
- Lemon juice
- Sea salt
- Sweetener: I use an all-natural sugar substitute, but any sweetener that you prefer works well.

How To Make Crockpot Turkey Tenderloin
- Add the ingredients for the marinade to a bowl and whisk to incorporate (If you have time, marinate the turkey for 24 hours). Otherwise, head right to the slow cooker.
- Mix the spices for the meat (herb seasoning, onion powder, smoked paprika) in a small bowl.
- Add the turkey tenderloin and all the marinade contents to the slow cooker. Sprinkle the tops of the turkey tenderloin with the spices. Slow cook on low for 3-3.5 hours (or until the center of the meat is at 165 degrees).
- Optional for the gravy: Whisk in a dash of Xanthan gum, turn the slow cooker to high, and cook uncovered for 5-10 minutes until the gravy starts to thicken.

Recipe Tips & FAQs
- You can skip the long marination hours: Marinating the turkey at least overnight will intensify flavor and moisture. However, if you don’t have the time, get straight to the cooking, and the results will still be amazing.
- Mix the meat spices in a small bowl: Mixing the spices in a bowl helps with even spice mix application and distribution of flavors.
- You can use Xanthan gum or its substitutes: If you don’t have or don’t want to use Xanthan gum for the gravy, go for any available substitutes. I serve the gravy more like a turkey glaze by brushing it on the meat. You can also serve it up on the side.
My crockpot turkey tenderloin takes 3-3.5 hours to cook. Most importantly, ensure the center of the meat is at 165 degrees.
Turkey tenderloin is a boneless and skinless part of a turkey breast. The breast has bones and skin.
I cook mine for at least 3 hours in a slow cooker or until the center-meat internal temperature reaches 165 degrees.
It’s a boneless and skinless part of the turkey breast.
Check the internal temperature at the center of the meat. It should be at 165 degrees.

Recipes to Enjoy This With
If you try this recipe, please stop back and leave it a star rating and/or a review in the comments. Stay connected & share photos of your creations with me & others on Instagram, Facebook, and Pinterest!

Crockpot Turkey Tenderloin
Use DRDAVINAHS at checkout to save on some equipment & ingredients!
Recommended Equipment
Ingredients
Crockpot Turkey Tenderloin
- 1.5 lbs Turkey breast tenderloins, these come packaged with two and are already pre-brined
- 1/2 tbsp 24 Herbs Sprinkle Seasoning (Salt-free)
- 1/2 tsp Onion Powder
- 1/2 tsp Smoked Paprika
- 1/4 tsp Xanthan Gum, optional, for gravy
Turkey Tenderloin Marinade
- 2 tbsp Garlic, minced
- 1/2 tbsp 24 Herbs Sprinkle Seasoning (Salt-free)
- 1/2 cup Olive Oil
- 1/4 tbsp Lemon Juice
- 1/2 tsp Natural Ancient Sea Salt
- 1/2 tsp Granular Monk Fruit Erythritol, or any 1:1 sugar substitute
Instructions
- Pat Turkey tenderloins dry with a paper towel.
- Add the ingredients for the marinade to a bowl. Whisk to incorporate.
- Add the Turkey tenderloin to the bowl with the marinade, and cover. Marinate for up to 24 hours – if short on time, head right to the slow cooker.
- Mix the spices for the meat (herb seasoning, onion powder, smoked paprika) in a small bowl – this helps with applying the spice mix evenly over the meat.
- Add the Turkey tenderloin and all the contents of the marinade to the slow cooker. Sprinkle the tops of the Turkey tenderloin with the spices.
- Slow Cook on Low for 3-3.5 hours (or until the center of the meat is 165 degrees.
- Remove the turkey and allow to rest for 5-10 minutes before cutting
- For gravy: whisk in the Xanthan gum, turn the slow cooker to high, cook uncovered until the gravy starts to thicken (5-10 minutes)
Nutrition Details
The nutrition facts come from entering the recipe ingredients into Spoonacular API, a database of food ingredients. They may vary for any recipe based on the exact product used. The keto sweeteners I use have 0g net carbs & are not included because sugar alcohols do not impact most people. This is provided as a courtesy, but you can do your own calculations if you wish!
Leave a Reply