In a small bowl, mix 1 tbsp Japanese soy sauce (koikuchi shoyu), 1 tbsp sake, 1 tbsp apple juice, 1 tsp mirin, 1 clove grated garlic, ½ tsp honey, and ½ tsp whole grain mustard until smooth. Set by the stove for later.
Wash and dry 6-8 spears asparagus, then break 2-5cm (1-2 inches) off of the base.
Use a vegetable peeler to remove the outer skin from the bottom 3-5cm of each stalk.
Take 6-8 slices thinly sliced pork belly and place one on a cutting board at a 45° angle. Place one spear of asparagus parallel to the bottom of the cutting board with the base placed over the bottom edge of the pork and the tip pointing to the right.
Wrap the bottom of the asparagus tightly with the pork to stop it from sliding out when cooking.
Roll the asparagus upwards until the pork is wrapped around the spear in overlapping spirals, leaving the tips poking out of the top.
Start heating your pan over medium high heat with 1 tsp cooking oil. While you wait, sprinkle the pork wrapped asparagus with 1 pinch salt and pepper and brush with ½ tbsp cornstarch until they have a thin even coating all over.
Once the pan is nice and hot, place the asparagus with the seam of the pork facing down. Turn occasionally until evenly browned all over.
Use kitchen paper to wipe out any excess oil.
Add the sauce and gently shake the pan occasionally to distribute it evenly and help coat the pork.
Once the sauce is glossy and thick enough to coat the back of a spoon, add 1 tsp butter and swirl the pan around to melt it before taking it off the heat.
Transfer to serving plates and top with a sunny-side-up egg and some toasted white sesame seeds. Drizzle any leftover sauce in the pan over the top and serve with 4 slices baguette (toasted). Enjoy!
Notes
Choose asparagus spears that are roughly the same thickness so they cook evenly and look uniform when plated.
If your asparagus is too long for your pan, cut the spears in half before wrapping to ensure proper cooking and easier handling.
Watch the sauce carefully during the final minute. It can go from perfect glaze to burnt quickly once it starts thickening.
Serve with toasted baguette slices for dipping into the runny egg yolk and sauce.
Store leftovers in the refrigerator for up to 2 days and reheat gently in a skillet over medium heat.