Rinse the shrimp under running water and drain well.

Slice the green onion thinly for making scallion oil.

Heat 2 tbsp of cooking oil in a pan and add the sliced green onion.

Add the shrimp, minced garlic, and a pinch of black pepper to the pan.

Boil the udon noodles in a pot of water for about 2 minutes.

Drain the cooked udon noodles and add them to the pan with the shrimp.

Add 1 tbsp oyster sauce and 1 tsp soy sauce to the pan.