Flatten the baguettes by rolling them with a glass bottle or rolling pin. Wash and finely chop the green onions. Peel and slice the hot dogs as you like.

For the scallion oil: Heat a little vegetable oil in a pan, add the chopped green onions, stir briefly, then remove from heat and transfer to a bowl. Set aside to brush on the bread later. For the grilling sauce: Melt the unsalted butter in a pan, then pour it into a bowl. Add 3 teaspoons chili satay sauce, 2 teaspoons chili sauce (add more if you like it spicier), and 2 teaspoons sugar. Stir until the sugar dissolves.

Use a brush to coat both sides of the flattened baguettes with the sauce you just made. Grill the bread over hot coals until both sides are golden and crispy.

Once the bread is grilled, brush a layer of scallion oil on top. Sprinkle with dried shrimp, pork floss, and sliced hot dogs. Drizzle with chili sauce and mayonnaise, then enjoy!