1 cup butter melted
1 cup water
1/3 cup unsweetened cocoa powder
1 teaspoon kosher salt
2 cups flour
1 3/4 cups sugar
1 1/2 teaspoons baking soda
2 eggs
1/2 cup sour cream,
1 teaspoon vanilla

Preheat oven to 180°C
Grease a cake tin and set aside.
In a bowl mix in all the dry ingredients and in another mix wet ingredients well.
Combine and mix well until smooth.
Pour into cake tin and bake for 30 minutes.