Here’s how to make this delicious Bangkok Shrimp Sandwich. 1. Make Your Sauce Add your sauce base of mayo and sriracha to a bowl. Next, add the seasonings: Bangkok shrimp spice, salt, sugar, red pepper flakes, paprika, garlic powder, and onion powder. Finish off with a little rice wine vinegar and just a touch of soy sauce. Whisk until fully combined. Fold in a handful of walnuts, then stick it in the fridge to let the flavors marry. 2. Prep & Fry Your Shrimp Start with peeled and deveined shrim