Preheat the oven to 180°C.
Combine flour, baking powder, sugar, and salt in a bowl.
Cut the cold butter into small pieces and mix into the dry ingredients with your hands or a blender.
Mix milk and eggs together and lightly combine with the dough.
Cook the chicken breast and cut into small pieces.
Add the chicken, corn, and bell pepper to the dough and mix.
Shape the dough into rounds and place on a baking pan.
Brush with egg wash and sprinkle cheese on top.
Bake in the oven at 180°C for 20 minutes.