Easy Korean Flank Steak

flank steak, cut into thin slices

few tablespoons vegetable oil (amount you need will vary)

For the marinade:

finely minced garlic

minced or grated ginger

soy sauce (Tamari if gluten free)

rice vinegar

sesame oil

Asian pear OR 1 Bosc pear - peeled, core removed, pureed in a blender with 2 tablespoons of water (or however much you need to make it a smooth puree)

brown sugar

pepper

pepper flakes

For garnishes:

Toasted sesame seeds

Green onions