Preheat oven to 350f
Sift flour, cocoa, baking powder into a large bowl. Add sugar and salt. Whisk until combined.
Whisk in milk, butter, and vanilla. Whisk until smooth.
Spread batter evenly in a greased dish (mine is around 9x13)
Combine the pudding sugars and cocoa, whisk together.
Pour in boiling water and whisk until sugar is dissolved.
Pour liquid over cake batter slowly
Place entire dish in the oven.
Bake for 40-45 minutes
Remove from oven and let set for 15 minutes before serving. Dust with powdered sugar.
Enjoy.
