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1
Preheat oven to 400 degrees F (200 degrees C).
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2
Spread chicken nuggets out on a baking sheet.
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3
Bake nuggets in the preheated oven until hot and crispy, 11 to 13 minutes.
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4
Preheat a waffle iron according to manufacturer's instructions and lightly coat with cooking spray.
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5
Whisk flour, cornmeal, sugar, baking powder, salt, baking soda, black pepper, and cayenne pepper together in a bowl.
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6
Whisk buttermilk, oil, and eggs together in another bowl.
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7
Pour buttermilk mixture into flour mixture and stir until batter is just-combined.
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8
Place 1 chicken nugget in the center of each waffle section on the waffle iron.
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9
Cover each nugget with about 1 tablespoon of batter, close the waffle iron, and cook until golden and crisp, about 4 minutes.
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10
Repeat with remaining nuggets and batter.