Preheat the oven to 180°C (350°F).

Grease a small baking pan with a little oil and sprinkle it with some oats to prevent sticking.

In a bowl, mix the oats, baking powder, baking soda, cinnamon, and salt.

In another bowl, beat the eggs well, then add the applesauce, honey, and milk. Mix until well combined.

Gradually add the dry ingredients to the wet ingredients, mixing until just combined.

Gently fold in the raisins (or dates) and the chopped walnuts.

Pour the batter into the prepared pan and spread it evenly.

Bake for 25-30 minutes, or until the top is golden and a toothpick inserted into the center comes out clean.

Remove the cake from the oven and let it cool in the pan for 10 minutes before transferring it to a wire rack to cool completely.