Whisk together dry ingredients in a medium bowl.
Add the egg and milk and beat into dry ingredients until well-incorporated.
Mix in the minced jalapeno and hot sauce if using. Let batter stand for about 15 minutes.
Heat a refined oil like peanut or corn oil in a deep pot or skillet over medium heat until it reaches 350 F (if you don't have a thermometer, just drop a small piece of batter in to test if it's hot enough).
Use a small spoon to drop 1-inch diameter pieces of batter into the oil, making sure not to crowd the pan. If you want the traditional cylindrical shape for barbecue hushpuppies, use a piping bag with a round tip instead.
Fry until golden brown, about 2 minutes. Remove to a draining rack or brown paper bag and salt. Serve hot!