Place the turkey breast in the slow cooker.
In a small bowl, whisk together the maple syrup, apple cider vinegar, Dijon mustard, thyme, garlic powder, and onion powder.
Pour the maple syrup mixture over the turkey breast, ensuring it’s well-coated.
Season with salt and pepper to taste.
Cover and cook on low for 6-7 hours, or until the turkey is tender and fully cooked.
