01 - Combine soy sauce, brown sugar, smoked paprika, garlic powder, onion powder, black pepper, and liquid smoke in a mixing bowl; mix thoroughly.
02 - Add thinly sliced beef to the marinade, ensuring each piece is evenly coated. Marinate for 30 minutes or up to 2 hours for enhanced flavor.
03 - Preheat the oven to 400°F or heat a large skillet over medium-high heat.
04 - If baking, lay beef slices on a wire rack placed over a baking sheet. If pan-frying, add vegetable oil to the heated skillet.
05 - Bake beef slices for 12 to 15 minutes, flipping once halfway through, or pan-fry in batches for 2 to 3 minutes per side until crispy and browned.
06 - Transfer cooked beef bacon to a paper towel-lined plate to remove excess oil.
07 - Serve immediately to maintain optimal crispness.