Tips: You can find chile-garlic sauce in the Asian-foods aisle of most major grocery stores. It is a red sauce often sold in a clear plastic jar. If you can't find it, you can add 1/2 tsp. crushed red pepper and 1 tsp. minced garlic with the ginger in Step 3.
A slice of ginger is about the size of a quarter. You can smash it with the side of a chef's knife or with the bottom of a small pot or pan.
Equipment: 14-inch flat-bottomed carbon-steel wok or 12-inch stainless-steel skillet