In a large bowl, combine the 200 g cooked and chopped corned beef, 1 cup sweetcorn kernels, ½ finely diced red onion, 1 deseeded and finely chopped red chilli (if using), and 1 tbsp chopped fresh coriander leaves. In a separate bowl, whisk together the ½ cup plain flour, ½ cup grated cheddar cheese (if using), 1 tsp ground cumin, 1 tsp paprika, ½ tsp chilli powder, and salt and freshly ground black pepper.
Make a well in the centre of the dry ingredients and add the 2 lightly beaten eggs and ½ cup milk. Whisk until just combined - be careful not to overmix!
Fold the wet ingredients into the dry ingredients until just incorporated. The batter should be slightly thick and chunky.
Optional: Chill the batter in the fridge for 30 minutes for a crispier fritter.
Heat enough Vegetable oil in a frying pan over medium heat to come about 1cm deep.
Spoon tablespoons of batter into the hot oil, flattening them slightly with the back of the spoon.
Fry for 3-4 minutes per side, or until golden brown and cooked through. Drain on paper towels.
Serve hot with your favourite dipping sauce, such as spicy tomato sauce, simple barbecue sauce, or aioli.