Hunan Beef with Peppers and Asparagus

boneless beef short rib (recommended or other steak, sliced into 1/4" thick slices)

peanut oil for frying

For the marinade:

Shaoxing wine (or dry sherry)

sea or kosher salt

light soy sauce

dark soy sauce

potato starch (substitute for all-purpose flour at 1:1 ratio if necessary)

water

For the stir fry:

minced ginger

garlic cloves (finely chopped or minced)

Thai red chiles (Bird's Eye chiles, seeded and finely chopped (for mild heat))

or more dried chili flakes (optional; 1-2 tsp for medium heat, 3+ tsp for more heat)

Sea or kosher salt (to taste)

scallions (sliced about 1-inch long on the diagonal)

asparagus spears (cut into 1-inch pieces on the diagonal)

each red (green and yellow bell peppers, cut into 1-inch pieces)

sesame oil