Boil salted water, add raw shrimp, and cook for 2-3 minutes until pink and opaque. Drain and cool slightly, then chop the shrimp.

In a mixing bowl, combine the chopped shrimp, mashed potatoes, panko, Parmesan, parsley, garlic powder, onion powder, salt, and pepper. Mix well.

Form the mixture into 1-2 inch balls or patties and place on a parchment-lined baking sheet.

In a shallow dish, beat the egg. In another dish, prepare additional breadcrumbs. Dip each croquette in egg, then coat with breadcrumbs.

Heat oil in a skillet over medium heat to 350°F (175°C). Fry croquettes in batches, about 3-4 minutes per side until golden brown.

Remove fried croquettes and place on paper towels to drain. Serve warm with dipping sauces.