Keto beef jerky homemade using the breville Smart Oven

Beef Jerky Prep 20 minutes + 8 hours marinating / Dehydrate 3–4 hours
Serves 6–8
1 pound (450g) of lean beef such as sirloin, flank steak or top or bottom round
Spice mix: 4 teaspoons kosher salt½ teaspoon freshly ground black pepper2 teaspoons chili powder1 teaspoon ground cumin1 tablespoon garlic powder1 teaspoon onion powder¼ cup brown sugar