Place the dates and baking soda in a bowl and pour boiling water over both ingredients. Press down the dates with a spoon so they’re submerged and let them sit for 10 minutes.
¾ cup dates, ½ teaspoon baking soda , ¼ cup boiling water
In the bowl of a stand mixer fitted with the paddle attachment, cream butter, and sugar on high until light and fluffy, about 1 minute. Reduce speed to medium, add the egg. Continue to mix until combined, scraping down the sides of the bowl as needed.
3 Tablespoons unsalted butter, 6 Tablespoons light brown sugar, 1 egg
Then with the mixer on low, add flour and baking powder mixing until just combined.
½ cup + 2 Tablespoons all-purpose flour, ½ teaspoon baking powder
Preheat the oven to 350˚F and puree the dates using a blender or food processor, and add the pureed date mixture into the batter, mixing on low until well combined.
Grease and line a 6-inch cake pan with parchment paper. Add batter into your cake pan and bake for 26-30 minutes, until a toothpick inserted in the center comes out mostly clean. Allow the cakes to cool for about 5 minutes before turning out onto a cooling rack.