Gather your ingredients: turkey broth, melted butter, garlic powder, onion powder, cayenne pepper, and any additional herbs or spices you prefer.
Prepare the marinade: In a mixing bowl, combine the turkey broth, melted butter, and seasonings. Whisk until well blended.
Fill the injector: Draw the marinade into the turkey injector syringe, filling it adequately but not too full.
Inject the turkey: Inject the marinade into various points of the turkey, focusing on the breast and thighs.
Let it rest: Allow the turkey to rest for at least 30 minutes to help flavors meld.
Cook your turkey: Preheat your oven or grill and cook until the internal temperature reaches 165°F (75°C).
Enjoy the results: Let the turkey rest for about 20 minutes before carving.