In a bowl, whisk together soy sauce, olive oil, balsamic vinegar, maple syrup, garlic, smoked paprika, pepper, and chilli flakes.
Add the Beyond Steak Tips to the marinade and toss to coat. Let sit for 15–30 minutes.
Heat a cast-iron skillet over medium-high heat and melt the plant-based butter.
Add the marinated tips in a single layer. Sear 2–3 minutes per side until browned and caramelised.
(Optional) Pour remaining marinade into a small saucepan, simmer for 2 minutes, and drizzle over cooked tips for extra flavour.
Serve hot with your favourite sides.