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Garlic Herb Slow Cooker Turkey Breast Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.4 from 15 reviews
  • Author: Evelyn
  • Prep Time: 30 minutes
  • Cook Time: 6 hours 15 minutes
  • Total Time: 6 hours 45 minutes
  • Yield: 8 servings
  • Category: Main Course
  • Method: Slow Cooking
  • Cuisine: American

Description

This Garlic Herb Slow Cooker Turkey Breast recipe offers a succulent, flavorful turkey breast cooked effortlessly in a slow cooker. Infused with a garlic herb butter marinade and finished under the broiler for crispy skin, it’s perfect for a comforting family meal or special occasion.


Ingredients

Turkey and Aromatics

  • 2.5 – 3 kg / 5-6 lb single turkey breast, skin on, bone in (NOT BRINED)
  • 1/2 tsp salt
  • Black pepper, to taste
  • 1 brown onion, halved
  • 1 head of garlic, halved horizontally
  • 3 sprigs rosemary
  • 8 sprigs thyme (optional)
  • Oil, for drizzling (for crisping skin)

Garlic Herb Butter

  • 150 g / 10 tbsp unsalted butter, softened
  • 1 1/2 tsp salt
  • 1/2 tsp black pepper
  • 4 large garlic cloves, minced
  • 1 tbsp finely chopped fresh sage
  • 1 tbsp finely chopped fresh rosemary leaves
  • 1 tbsp finely chopped fresh thyme leaves
  • 1 tbsp finely chopped fresh parsley

Gravy

  • Chicken broth/stock, for topping up if needed
  • 1/3 cup / 50 g flour
  • 1/2 tsp dark soy sauce (or gravy colouring, optional)


Instructions

  1. Prepare Garlic Herb Butter: In a bowl, combine the softened unsalted butter with salt, black pepper, minced garlic, and finely chopped fresh sage, rosemary, thyme, and parsley. Mix thoroughly to create a flavorful herb butter.
  2. Loosen Turkey Skin: Pat the turkey breast dry with paper towels. Using a small knife, carefully cut a slit on one side of the breast to separate the skin from the flesh. Slide an upside-down tablespoon between the flesh and the skin to loosen it all around the turkey.
  3. Apply Herb Butter: Slather about two-thirds of the garlic herb butter underneath the loosened skin, spreading it evenly. Use the remaining butter to coat the surface of the turkey, including the underside.
  4. Season the Skin: Sprinkle the skin with 1/2 teaspoon of salt and a good grind of black pepper. At this point, you can refrigerate the turkey uncovered for anywhere from overnight up to two days to enhance flavor.
  5. Arrange in Slow Cooker: Place the halved garlic head and brown onion in the base of a 5-liter (5-quart) slow cooker. Lay the turkey breast on top with the skin side up. Scatter the rosemary and thyme sprigs over the turkey.
  6. Slow Cook the Turkey: Cook the turkey on low heat for 6 hours, checking at the 4-hour mark to ensure it is cooking properly. The turkey is done when it reaches an internal temperature of 75°C (165°F) in the thickest part.
  7. Rest the Turkey: Carefully transfer the cooked turkey to a baking tray, reserving the juices in the slow cooker. Cover the turkey loosely with foil and allow it to rest for 20 minutes to redistribute the juices.
  8. Crisp the Skin: Remove the herb sprigs from the turkey. Drizzle the skin with a small amount of oil (avoid butter as it burns easily). Place the turkey under a preheated broiler or grill on high, approximately 30 cm (12 inches) from the heat source, for 5 to 10 minutes until the skin is crispy and golden brown. Watch closely to prevent burning.
  9. Prepare the Gravy: Strain the slow cooker juices into a bowl, pressing the onion and garlic to extract maximum flavor. If the liquid volume is less than 2.5 to 3 cups (675-750 ml), top up with store-bought chicken broth or stock.
  10. Separate Fat: Let the liquid settle and then spoon off about 1/4 cup of fat or butter from the surface.
  11. Make Roux: Pour the juices into a saucepan over medium heat. When it begins to bubble, whisk in the flour and cook for 1 minute to form a roux.
  12. Thicken Gravy: Gradually add all the slow cooker juices back into the saucepan, whisking continuously to prevent lumps. Simmer for 3 to 5 minutes until the gravy thickens.
  13. Season Gravy: Add dark soy sauce (if using), salt, and black pepper to taste. Stir well and pour into a serving jug.
  14. Serve: Slice the rested turkey and serve with the homemade gravy on the side. Cranberry sauce pairs wonderfully with this dish.

Notes

  • Ensure the turkey breast is not brined to properly absorb the garlic herb butter flavors.
  • Separating the skin carefully helps the herb butter penetrate the meat and keep it moist.
  • If desired, the turkey can be seasoned up to two days in advance for deeper flavor.
  • Do not use butter for crisping the skin under the broiler as it burns easily—use oil instead.
  • Use a meat thermometer to confirm the turkey reaches a safe internal temperature of 75°C (165°F).