Use paper towel to pat dry shrimp. In a separate large bowl, add cornstarch, toss in shrimp and coat. Shake off the excess cornstarch and add shrimp to hot skillet with oil. Cook shrimp for about 3-4 minutes per side until pink and golden brown.
Store bang bang shrimp separately from taco toppings in airtight containers in the fridge for up to 4 days. Freeze leftover bang bang shrimp only in an airtight container for up to 3 months.