STEP 1/7
Lay the breads on top of each other, cut the edges of the bread using a bread knife, and cut them into quarters.
STEP 3/7
Add chopped shrimp, potato starch, egg whites, cooking wine, salt, pepper and olive oil and mix.
STEP 7/7
Combine minced garlic, ketchup, vinegar, sugar and oyster sauce to make sauce.