Preheat a deep-fryer to 375 degrees F OR In a large sauce pan, pour vegetable oil – half way .
In a large bowl mix together, cornmeal, flour, garlic & onion powder, cayenne, salt and pepper.
Mix buttermilk and eggs. Set aside.
Dip shrimp in buttermilk mixture and lightly deep into the flour mixture.
Then fry the shrimp in the fryer or saucepan a few at at a time. Fry until slightly brown and crispy, about 3 to 4 minutes or more depending on the size. These big chunks took about 6 minutes per side.
Remove from the fryer with a slotted spoon place on a cookie rack to ensure crispness. Repeat with the remaining shrimps.