In a large bowl whisk together the butter, warm water, and eggs. Add the dry ingredients and mix well. Pour into the baking dish. Sprinkle the chopped chocolate on top of the batter.
In a small bowl stir together the cream cheese and 1 tablespoon sweetener. Drop dollops on top of the batter and swirl gently.
Scatter the frozen raspberries on top. Sprinkle with the additional tablespoon of sweetener.
Bake for 35-40 minutes or until the entire brownie has puffed up and is no longer jiggly in the center.