1. 1. In a mixing bowl, combine all-purpose flour, beaten eggs, whole milk, and melted butter until smooth.

2. 2. Stir in diced apples and cinnamon into the batter.

3. 3. Heat vegetable oil in a pan over medium heat.

4. 4. Pour a ladle of batter onto the pan and cook until bubbles form on the surface, then flip and cook the other side until golden brown.

5. 5. Repeat with the remaining batter.

6. 6. Serve the pancakes warm with a sprinkle of cocoa powder on top.