Preheat the oven to 350 degrees F (175 degrees C). Coat baking sheets with baking spray.

Stir flour, baking powder, and salt together in a bowl. Set aside.

Beat sugar and butter together in a large mixing bowl with an electric mixer until light and fluffy. Add eggs; beat well. Stir in milk and vanilla extract. Add flour mixture and mix well.

Shape dough into level tablespoon-sized balls. Roll in corn flakes. Place on the prepared baking sheets. Make a shallow indention in the tops of the cookies with your thumb; top each cookie with a halved cherry.

Bake in the preheated oven until lightly browned, about 10 minutes.