Prepare brownie mix according to directions and let cool slightly.|
Place Dove chocolate in mixing bowl and place bowl over a pot of simmering water to melt, stirring often.
Pour half of melted mixture over brownies.
Sprinkle top of brownies with 3/4 cup chopped snickers bars and 1 cup M&M's.
Drizzle remaining Dove chocolate on top.
Let cool completely before serving.