01 - Heat the oven to 375°F and line a rimmed tray. Mix ground beef with its salt, pepper and garlic powder. Divide into eight portions, flatten, and enclose modest amounts of cheddar and cooked bacon in each. Seal into short logs; reserve excess filling rather than making the seams thin.
02 - Bake the logs until the ground-beef centers reach 160°F, checking with a thermometer. Let steam escape briefly, then refrigerate promptly in a shallow container until firm and cold. Do not freeze them for frying.
03 - Whisk flour, cornmeal, sugar, baking powder and batter salt. Stir in buttermilk and egg until no dry flour remains. Prepare a draining rack and use a fryer or sturdy deep pot with adequate headroom.
04 - Heat frying oil to 350°F according to the equipment instructions. Pat condensation from the cooked logs. Insert suitable short skewers only if they fit the fryer safely; otherwise lower and lift with a slotted utensil.
05 - Coat one log in batter and lower carefully into the oil. Fry in small batches, turning as needed, until the batter is cooked and crisp and the center reaches 165°F. Check a first piece; color alone is insufficient. If the coating browns early, finish on a tray in the oven until the center is hot.
06 - Drain on a rack and cool briefly before eating; cheese can be much hotter than the crust. Keep water away from the hot oil and let it cool fully before handling for disposal.