Remove shells from the tiger prawn or shrimp, but keep the tail on. Lightly pound the black peppercorns using a mortal and pestle until they are coarsely cracked.
You may use the flat side of your knife to press, crack, and coarsely chopped the peppercorns.
Heat up a skillet or wok and add the melted butter on medium heat. Saute the garlic and black pepper until you smell the aroma of the pepper, add the tiger prawn or shrimp and stir to combine.
Add the oyster sauce, stir a few times before adding the wine and sugar. Stir fry until the prawn or shrimp are cooked. Add the scallions, stir to mix well, dish out and serve immediately.
Notes
For the best results, broil the black pepper shrimp in the oven for 1 minute to slightly char the surface.