Place the almonds, sesame seeds, peppers, chillies, sugar and sherry vinegar in a small food processor and process until a coarse paste.
Preheat a BBQ or grill plate over high heat. Brush prawns with mole, drizzle with oil and cook for 2-3 minutes each side.
Place the avocado, lime and chilli in a bowl. Season with salt and pepper and toss to combine. Top with baby coriander to serve.
Serve the grilled prawns with guacamole and grilled tortillas.