Simple, reliable teriyaki jerky using bottled teriyaki marinade as the base. The overnight soak gives you deep flavor penetration and that characteristic lacquered finish when dried. Use a low-sugar marinade (e.g. Kikkoman Less Sodium, Soy Vay Veri Veri Teriyaki, or any sugar-free option) to keep it T2D-friendly.
Step 1 — Trim and slice the meat: Trim all visible fat from the beef — fat doesn't dry properly and accelerates spoilage. Freeze the trimmed roast for 90 minutes until firm but not frozen solid, then slice against the grain into strips about ¼ inch thick. Against the grain produces a more tender chew; with the grain gives you the classic chewy jerky pull.
Step 2 — Mix the marinade: Combine the teriyaki marinade, black pepper, and red pepper flakes (if using) in a large zip-lock bag or bowl. That's it — a good bottled teriyaki already has the soy, sweetener, ginger, and garlic balance dialed in.
Step 3 — Marinate: Add the sliced meat to the marinade, making sure every strip is well coated. Seal the bag removing as much air as possible, or cover the bowl tightly. Refrigerate for at least 8 hours — overnight is strongly preferred and gives noticeably better flavor penetration.
Step 4 — Prep for drying: Remove strips from marinade and pat thoroughly dry with paper towels. This step matters — removing surface moisture dramatically cuts drying time and improves texture. If using sesame seeds, sprinkle them on now and press lightly so they stick. For oven drying, preheat to 175°F and lay strips on wire racks set over foil-lined baking sheets, leaving space between strips for airflow.
Step 5 — Dry the jerky: Oven method: dry at 175°F for 3½–4 hours, flipping strips halfway through. Dehydrator method: 160°F for 4–5 hours. Jerky is done when it bends and cracks slightly without snapping completely in half and has no visible moist spots. The teriyaki will leave a slightly glossy, lacquered surface — that's what you want. Start checking at the 3-hour mark; thicker strips need more time.
Step 6 — Cool and store: Let jerky cool completely on the rack before storing — it firms up as it cools. Store in an airtight container or zip-lock bag. Room temperature: up to 1 week. Refrigerated: up to 3 weeks. Frozen: up to 3 months.