If serving with vegetables/noodles, begin preparing at this time. Otherwise, move onto the next step.
Prepare the sauce by combining all the ingredients (apart from olive oil which we will use for frying) in a small mixing bowl. Whisk thoroughly to combine, taste and adjust seasonings as needed.
Place the soya chunks in the bowl, stir, making sure all chunks are covered evenly. Set aside for 5-10 minutes.
Heat a large pan over medium heat. Add 2 tbsp olive oil and let warm for 30 seconds.
Using a slotted spoon (or fork), slowly add the marinated soya chunks to the pan (leaving any excess marinade behind but don't throw it away as we will be adding it to the pan later).
Cook on all sides for around 1 minute, or until light golden brown. Add the leftover sauce and cook, stirring frequently for around 5 minutes, or until warmed through.