Preheat the oven to 175 °C and line a 20cmx20cm pan with baking paper. You need two bowls for this recipe.
In one bowl stir together the sugar, flour, cocoa powder, and salt. Set aside
In the second bowl, stir together the melted coconut oil, vanilla and eggs. Stir until combined.
Add the dry mixture to the wet and stir until combined, ensuring not to overmix
Pour the batter into the prepared pan and bake for 16-20 minutes or until the brownies appear set in the middle, with a little bit of a gooey appearance
Let the brownies cool completely in the pan and then prepare the frosting
In a small saucepan over medium-low heat, mix together all the frosting ingredients and stir until melted and completely smooth
Let cool for about 20 minutes and then pour over the brownies.
Then sprinkle one type of M&M’s on one side and the other type on the other side.
Place the pan in the refrigerator and chill for 1-2 hours or until the frosting is firm and cut into squares