Preheat a cast iron skillet on medium heat.
Slice okra into 1/8 inch thick pieces and set aside.
Add cornmeal, flour, buttermilk, egg, and seasoned salt to a bowl.
Whisk until all ingredients are incorporated.
Add okra to batter and stir.
Cover bottom of skillet with about 1/4 inch cooking oil.
Working in batches, drop spoonfuls of batter into hot oil. Don't crowd in the pan. Cook about 2 to 3 minutes and flip. Cook second side about 2 to 3 minutes. Remove from skillet when both sides are browned.
Drain on paper towel. Sprinkle with kosher salt while the fritters are still warm.
Repeat the batches until done. Add more oil if necessary.