Spicy Lobster Tea Sandwiches with Green Mango Relish

Ingredients

• 2 live lobsters (800gm-900gm each)
• 12 slices soft white sandwich bread, crusts removed
• To serve: mayonnaise
• 1 large green mango, cut into julienne
• To serve: thinly sliced mint and coriander
• Chilli relish
• 105 gm (½ cup) coconut oil
• 1 small Spanish onion, thinly sliced
• 30 gm (¼ cup) dried shrimp, soaked in warm water for 10 minutes, drained
• 10 garlic cloves, finely grated
• 15 gm galangal, peeled and sliced
• 25 gm (¾ cup) dried red chillies, seeds removed
• 75 gm light palm sugar, coarsely grated
• 50 ml tamarind pulp, or to taste (see note)
• 50 ml fish sauce