Prepare the potato base: Add 2tbsp oil into a pan and spread evenly over the base on low heat. Peel 1 medium potato (250g) and use a peeler to shave thin slices directly into the pan, layering and slightly overlapping to form a full pancake shape.
Cook the potato pancake slowly: Cook on low heat for 3–5 minutes until the potato slices soften and bond together into one piece, and the bottom becomes lightly golden.
Add and spread the egg: Crack 1 egg onto the pancake and spread evenly across the surface. Cook until mostly set, then sprinkle 1tsp black sesame seeds evenly on top.
Flip and finish cooking: Flip the pancake and cook for 1 minute until the egg is fully set and the bottom is golden. Sprinkle another 1tsp black sesame seeds and transfer to a plate.
Prepare the blooming sausages: Take 2 sausages and insert a skewer through the centre or place between chopsticks. Cut shallow diagonal lines at a 45° angle along each sausage (5mm–1cm apart). Rotate 60° and repeat twice more until each sausage has three sets of cuts.
Fry the sausages: Heat 1tbsp oil in a pan over medium heat. Cook sausages for 3–5 minutes, turning occasionally, until crispy and opened into a blooming shape.
Assemble the pancake: Place the potato pancake on a plate. Add 1 lettuce leaf and the 2 sausages. Drizzle 1tbsp sriracha sauce evenly on top. Serve folded or open.