In a large mixing bowl, combine the flour, sugar, baking powder, salt, and black pepper. Whisk until well blended.

Gradually stir in the finely chopped sweet onions and milk until a thick batter forms.

Pour about ½ inch of oil into a heavy skillet and heat it over medium heat to around 350°F.

Using heaping tablespoons of batter, drop them into the hot oil, leaving space between each fritter. Fry for about 2-3 minutes on each side or until golden brown.

Remove fritters with a slotted spoon and place them on a plate lined with paper towels. Serve hot with your favorite dipping sauce.