Ingredients:
1 cup all-purpose flour
2/3 cup sugar
1/4 cup cocoa powder
2 tsp baking powder
1/4 tsp salt
1/2 cup milk
2 tbsp melted butter
1 tsp vanilla extract
1/2 cup chopped nuts (optional)
3/4 cup brown sugar 1/4 cup cocoa powder
1 3/4 cup hot water
Instructions:
Preheat your oven to 350°F (175°C). 
Prepare the cake batter:
