Pre heat oven to 325°F
Butter and flour an 8"x 8" baking pan.
Chop dates and place in a small bowl, pour scalding coffee over dates and let soak for about 15 minutes. Stir in baking soda.
Whisk together flour, baking powder and salt.
Beat butter and sugar with a mixer on medium high speed until the butter has become pale and fluffy, about 3 minutes.
Reduce speed to medium and add in eggs, one at a time, until thoroughly combined.
Reduce speed to low and add half the flour mixture, beating until well combined.
Add date mixture and the rest of the flour mixture, beating until combined.
Transfer the batter to a baking pan and bake until the cake is puffed and rises back in the center when gently pressed. About 25 minutes.