Take the skin off the onion and cut 3/4 to 1 inch off the top and bottom.
Take out the core in the middle of the onion, which is about 1 inch in diameter.
Use a sharp knife to slice down the middle of the onion about 3/4 of the way. Turn the onion 90 degrees and slice again.
Continue slicing each part in half until you have 16 sections.
Be mindful not to cut through the onion's bottom.
In a mixing bowl, add White Lily Self Rising Flour, Paprika, Creole Seasoning, Garlic Powder, and Salt.
Mix everything very thoroughly with a spoon, then set it aside.
Take a bowl and place the onion in it.
Pour buttermilk over the onion.
Now, place the onion in the flour mixture and coat it thoroughly.
Check that the onion is completely coated, particularly between the "petals."
Pour at least 3 inches of oil into a large, deep pan, leaving 2 inches of headspace.
Heat the oil over medium-high heat until it reaches 400 degrees on a deep-fry thermometer.
Remove any excess flour from the onion.
Cut side down, and delicately lower the onion into the oil using a wire skimmer.
Adjust the heat so that the temperature of the oil remains near 350 degrees.
Fry for about 3 minutes, then flip the onion and continue to fry for another 3 minutes, or until the other side is golden brown.
Drain on a paper towel and enjoy Brenda Gantt's Blooming Onion!