To avoid a mess in the kitchen, create an assembly line.  Use small disposable pans or bowls.  In one, place the flour.  In the second, place the whisked eggs.  In the third, place the crushed cornflakes.

Dredge each piece of chicken in flour, then egg, then cornflakes, and place in a nine- by 13-inch pan.

Spray the tops of the chicken nuggets well with cooking spray and bake at 425 degrees Fahrenheit for 20–25 minutes until golden and crispy.

Meanwhile, mix the ketchup, oil, brown sugar and hot sauce.

Pour the desired amount over the cooked nuggets and bake for an additional 10–15 minutes.