Step 1: Preheat your oven to 350°F (175°C) and grease a 9-inch round cake pan or line it with parchment paper.
Step 2: In a medium bowl, combine the chopped dates, baking soda, 1/2 cup boiling water, and 1/2 cup orange juice. Let soak for 15-20 minutes until dates are soft.
Step 3: In a separate bowl, whisk together the flour, baking powder, 1.5 tsp cardamom, and salt.
Step 4: In a large mixing bowl, cream together the softened butter, brown sugar, and orange zest until light and fluffy.
Step 5: Add the eggs one at a time to the butter mixture, beating well after each addition.
Step 6: Stir in the soaked date mixture (including the liquid) into the wet ingredients.
Step 7: Gradually fold the dry ingredients into the wet mixture until just combined. Do not overmix.
Step 8: Pour the batter into the prepared pan and bake for 40-45 minutes, or until a toothpick inserted into the center comes out clean.
Step 9: While the cake bakes, prepare the drizzle by whisking together the honey, 1 tbsp orange juice, and 1/4 tsp cardamom in a small saucepan over low heat until warm and fluid.
Step 10: Once the cake is removed from the oven, poke small holes over the surface with a skewer and pour the warm honey drizzle over the top. Let cool before serving.