After removing the brownies from the oven, let them cool in the pan for 10 minutes. Then transfer them from the pan to a cooling rack and cool for up to 1 hour.
Cut the brownies into 12 equal pieces.
Place the chocolate frosting into a piping bag fitted with a star tip and set it aside.
In a small bowl, add the white frosting and mix in a few drops of green food coloring until you reach the desired color. Transfer the green frosting to a piping bag fitted with a #233 tip to create a grass-like texture.
Pipe green frosting over each brownie, covering the surface completely.
Using the chocolate frosting, pipe a small circle in the center of each brownie.
Place a few egg-shaped candies in the middle of the chocolate circle.
Repeat the process until all brownies are decorated. Enjoy!