In a bowl, mix the flour, sugar, baking powder, cinnamon, and salt together.
In a separate bowl, whisk the milk and egg until combined.
Pour the wet ingredients into the dry ingredients and stir until just combined.
Fold in the diced apples gently to avoid breaking them.
Heat vegetable oil in a deep frying pan over medium heat.
Once the oil is hot, carefully drop spoonfuls of the batter into the oil.
Fry for about 2-3 minutes on each side or until golden brown.
Use a slotted spoon to remove fritters and drain on paper towels.
Dust with powdered sugar while warm.
Serve immediately and enjoy your delicious apple fritters!