In a large mixing bowl, combine corn, jalapeno, flour, baking powder, salt, and sugar. Stir thoroughly until evenly distributed.

In a separate bowl, whisk together milk and beaten egg until smooth and frothy.

Pour the wet mixture into the dry ingredients, and gently stir until just combined to avoid overmixing.

Heat oil in a frying pan over medium heat until shimmering, about 350°F (175°C).

Drop about 2 tablespoons of batter into the hot oil, ensuring space between each fritter. Fry for 2-3 minutes on each side until golden brown.

Remove fritters using a slotted spoon and drain on a paper towel-lined plate.

Serve warm with your favorite dipping sauce.