She tells us for crunchy chicken fry the chicken twice. She makes a hot candy sauce to coat them.
She writes on her ingredient list 1/2 cup mulyeot, a rice syrup, the main ingredient balanced with 1/4 cup soy sauce. So, heavy sweet and salty elements.
Mulyeot is actually corn syrup. Corn being an American commodity she can thank international trade for the misapprehension.
The dried chile pepper is not very hot. But this can be made a lot hotter. I notice she's using garlic but not ginger and she does not specify rice vinegar nor specific mustard.