In a large mixing bowl, whisk together the cornmeal mix, self-rising flour, and baking soda until well combined.
Pour buttermilk into the dry ingredients and stir until just combined. Be careful not to overmix, as this can make the hoecakes tough.
Heat a cast-iron skillet or griddle over medium heat. Add 1/4 cup vegetable oil, butter, or bacon grease the surface.
Once the skillet is hot, drop spoonfuls of the cornbread batter onto the skillet or hot griddle, using about 1/3-1/2 cups of batter for each hoecake. Use the back of the spoon to spread the batter slightly into a round shape.
Cook the hoecakes for 2-3 minutes on each side, or until golden brown and crispy on the outside, and cooked through on the inside. Flip them carefully using a spatula to ensure they cook evenly.
Remove the cooked hoecakes from the skillet and transfer them to a plate.
Repeat the process with the remaining batter, adding more oil, butter, or bacon grease to the skillet as needed.
Serve the cornbread hoecakes warm, either plain or with your favorite toppings such as a pat of butter, drizzle of honey, cane syrup, or maple syrup, or a schmear of jam.