In a mortar and pestle, pound the bird's eye chillis. Add the long chilli and then the garlic to form a paste.
In a large bowl, thoroughly combine the pork mince, the chilli and garlic paste and half each of the oyster sauce, soy sauce and fish sauce.
Divide this mixture into three even portions, one for each egg. On a baking sheet, form each portion into a ball and then flatten.
Dry the eggs off with a paper towel. Place an egg at the centre of one of the flattened pork mixtures. Using wet hands (this stops the mixture sticking to your hands), fold the minced pork mixture over the egg. Lift the egg off the baking sheet and evenly layer the mixture around the egg, moving the egg from hand to hand. Repeat with the other eggs and refrigerate for 30-60 minutes to firm up.
Prepare 3 bowls. Add flour to the first and sprinkle with salt and mix. In the second bowl, break 2 eggs, mix and add the remaining soy, fish and oyster sauce. Stir to combine. In the third bowl, add the breadcrumbs.
Flour, egg and crumb the eggs.
When the eggs are ready, preheat a deep-fryer or deep frying pan to 180°C. Have a sheet pan with a rack and kitchen towels ready.
Gently lower the scotch eggs into the fryer or deep frying pan and cook until golden and crisp. This should take about 5–6 minutes.
Drain on kitchen paper and serve immediately.