Rub the turkey tenderloins with garlic halves, then season with marjoram, salt, black pepper, and cayenne pepper.
Place the seasoned turkey tenderloins in the Air Fryer and cook for 30 minutes, flipping halfway through, until an instant-read thermometer reaches 165°F in the center.
To make the gravy, transfer the drippings from the Air Fryer to a saucepan.
Add 1 cup of broth and 1/6 cup of flour, whisking until smooth.
Once the mixture turns golden brown, add the remaining vegetable broth and flour.
Season with salt and pepper to taste.
Simmer over medium heat, stirring constantly, for 6 to 7 minutes until thickened.
Serve the warm gravy over the turkey tenderloin and enjoy!
Notes / Tips / Wine Advice:
Wine AdvicePair with a light, fruity red like Pinot Noir or a crisp white wine such as Sauvignon Blanc to enhance the savory flavors.