1 large garlic clove, roughly chopped
3cm/1¼in piece fresh root ginger, peeled and roughly chopped
3–4 tsp lime juice
2 round shallots, roughly chopped
100ml/3½fl oz light coconut milk
100g/3½oz smooth peanut butter
1 tsp tamarind paste
4 tsp soft dark brown sugar
4 tsp dark soy sauce