Steps
1. Preheat your oven to 350°F (175°C) and grease a small cake pan.
2. In a bowl, mix the cooked rice, grated apple, and ginger together.
3. In another bowl, whisk together the flour, sugar, baking powder, cinnamon, and salt.
4. In a separate bowl, beat the egg, then add the vegetable oil and milk, mixing well.
5. Combine the wet ingredients with the dry ingredients, then fold in the rice mixture until just combined.
6. Pour the batter into the prepared cake pan and smooth the top.
7. Bake for 25-30 minutes or until a toothpick inserted in the center comes out clean.
8. Allow to cool slightly before serving. Enjoy your cake warm or at room temperature!