Ebi Cream Korokke( 海老クリームコロッケ)

Name: Ebi Cream Korokke( 海老クリームコロッケ)
Cuisine: Asian, Japanese
Ingredients: 130 g peeled raw shrimp; katakuriko for cleaning; 1/3 large onion; 15 g unsalted butter; 200 ml whole milk; 3 Tablespoon all-purpose flour; 1 pinch salt; 1 pinch freshly ground black pepper; 1 teaspoon panko; 1 teaspoon bouillon; oil for deep frying; large egg for deep frying; all-purpose flour for deep frying; panko 2 Tbsp for deep frying