Preheat oven to 350º Fahrenheit.
In a medium bowl, whisk together sugar, flour, cocoa powder, salt, and baking powder.
Add in the eggs, oil, vanilla and water and mix until combined.
Set aside ¼ cup of the batter.
Pour the remaining batter into a greased 8x8 baking dish.
To create the cream cheese layer, add cream cheese, sugar, egg, and vanilla to a medium mixing bowl.
Beat until smooth.
Add the drops of green food coloring and mix well.
Carefully spread mixture over top of brownie batter.
Drizzle the brownie batter that you had set aside over top of the cream cheese layer.
Using a knife, gently swirl the layers and colors together. Taking care not to over-swirl.
Bake for 30-35 minutes or until a toothpick comes out clean.
Allow to cool before serving.