Begin by heating up the oil in a dutch oven or large frying pan. The heat should be on medium to medium high. Pro Tip: Allow oil to have a sufficient amount of time to come to temperature. At least ten minutes. This ensures even cooking.
While the oil is heating, place flour, seasoned salt, garlic, pepper, and onion powder in medium to large bowl. Whisk together until fully incorporated.
Add eggs and milk to second bowl, whisk thoroughly to combine.
To prepare the chicken, trim off any excess fat, cut chicken pieces into smaller tenderloin size. Approximately 2"x 4", or however you prefer. May substitute breasts for thighs, drumsticks, or wings as well. Place on plate or platter.
With one hand, dredge chicken piece through flour mixture. With the other hand, then dredge chicken through egg/milk mixture. With the first hand again dredge the chicken through the flour. The point here is to double coat the chicken. Place on clean platter. Pro Tip: Using two hands to batter the chicken will prevent you from battering your fingers!
When all the chicken is coated and the oil is up to temperature, add 2 tablespoons salted butter to pan, allow to melt completely. Use tongs to place chicken in pan in batches. The chicken should not be touching. Allow sufficient space to ensure proper cooking.
Allow to cook approximately 8-10 minutes, depending on the size of your pieces, or until a deep golden brown. Use tongs to flip once, add the remaining 2 tablespoons salted butter, and cook the other side approximately 6-7 minutes. Pro Tip: The second side will always take less time to cook than the first side. This is true in most cooking applications where food is flipped. Keep on eye on the temperature. If chicken is appearing a deeper golden brown too fast, lower temperature to medium.
Once both sides are a deep golden brown, remove with tongs, drain on paper towel lined plate or platter. Begin second batch if necessary. May have to add an additional 2-4 tablespoons of butter to pan. Follow same steps outlined above.
Allow to rest for several minutes. Enjoy!