In a small bowl, combine the chopped dates and baking soda. Pour the boiling water over them. Let this sit for about 10-15 minutes.

In a large bowl, cream together the softened butter and brown sugar until light and fluffy.

Add the egg and vanilla extract to your butter and sugar mixture, and mix until well combined.

In another bowl, whisk together the flour, baking powder, and salt. Gradually add the dry ingredients to your wet mixture, alternating with the date mixture. Stir carefully until just combined.

Pour the batter into a greased baking dish and smooth the top. Bake in a preheated oven at 350°F (175°C) for about 30-35 minutes, or until a toothpick inserted in the center comes out clean.

In a saucepan over medium heat, melt the butter. Once melted, add the brown sugar, cream, vanilla extract, and salt.

Stir constantly until the mixture is smooth and bubbly. Remove from heat and let it cool slightly before drenching your pudding with it.