Add 3 cups of vegetable oil to a wok and turn the heat on to medium-high. Once the oil is hot add in the shrimp and reduce the heat to medium or medium-low to prevent it from browning too quickly.
Before adding in your next batch of shrimp be sure to allow the oil to return to its original temperature by turning the heat back up to medium-high . And again once the oil is hot then you can place your next batch of shrimp into the wok. After adding in the shrimp slightly reduce the heat and fry until lightly golden brown. Repeat the process with the third batch of shrimp.
Place the fried shrimps on a wire rack or a plate lined with paper towels until all of the shrimp has been fried.
Then transfer the fried shrimp to a bowl and toss to coat with the mayo mixture.
Place the coated shrimp on the bed of cabbage.
And sprinkle on some of the candied walnuts.
Serve immediately while hot.