To begin, prepare the dressing. In a dry saucepan, gently toast the coriander seeds until fragrant. Add the bay leaves, shallots, chilli, vinegar, water, salt and pepper and simmer for a few minutes. Set aside and allow to cool. Remove the bay leaves and whisk in the olive oil
To cook the steaks, heat a heavy-based pan or skillet over a high heat for a few minutes. Season very well with salt and pepper and cook for around 2Äì2 1/2 minutes on each side, flipping frequently. Allow to rest, then slice
Combine the salad leaves and mint in a bowl and coat with a couple of tablespoons of dressing. Arrange on a serving platter and top with the steak, followed by more dressing. Serve immediately.