Step 1: Prepare the Date Filling

1. In a saucepan over medium heat, combine chopped dates, water, honey (or maple syrup), cinnamon, and orange zest.
2. Stir continuously until the mixture becomes soft and jam-like.
3. Let it cool completely before using.

Step 2: Prepare the Dough

1. In a bowl, whisk together flour, baking powder, and salt.
2. In a separate large mixing bowl, cream together butter and sugar until light and fluffy.
3. Add egg and vanilla extract, mixing well.
4. Gradually incorporate the dry ingredients until a soft dough forms.

Step 3: Assemble the Cookies

1. Roll out the dough into a rectangle on a lightly floured surface.
2. Evenly spread the cooled date filling over the dough.
3. Carefully roll the dough into a log and wrap it in plastic wrap.
4. Refrigerate for about 15 minutes to firm up.

Step 4: Slice and Bake

1. Preheat your oven to 350°F (175°C).
2. Slice the chilled dough into ½-inch thick rounds and place them on a parchment-lined baking sheet.
3. Leave about 2 inches of space between each cookie.
4. Bake for 12-15 minutes, or until the edges turn golden brown.

Step 5: Cool and Serve

1. Let cookies rest on the baking sheet for 2 minutes, then transfer them to a cooling rack.
2. Optionally, drizzle with a simple icing (powdered sugar + milk) or dip in melted chocolate for a fancy finish.
3. Enjoy warm or at room temperature!