01 -
Set your oven to 350°F (175°C). Get a baking sheet ready with a non-stick mat or parchment paper.
02 -
Sort out the orange, green, and purple M&M's into a separate bowl to use later.
03 -
Sift the cocoa powder, flour, baking soda, and salt together in a bowl, then set it aside for now.
04 -
In another bowl, whip up the butter with both types of sugar using an electric mixer until it looks fluffy and smooth.
05 -
Mix the eggs and vanilla into the butter-sugar mixture, blending until it's nicely combined.
06 -
Pour in the dry mix little by little into the wet mixture while stirring until it's fully blended.
07 -
Fold in about half of the M&M's until they're evenly mixed into the dough.
08 -
Shape portions of dough into 2-inch balls and gently press leftover M&M's on top of each ball.
09 -
Pop the cookies into the oven and bake for 9 to 11 minutes until you see the edges are set. Let them cool on the sheet first, then transfer them to a wire rack to finish cooling.
10 -
Soften up the white frosting in the microwave for about 15 seconds. Stir in the neon green coloring until it looks bright and consistent.
11 -
Fill each cookie by using a flavor injector to poke the side and squeeze in frosting until it cracks open slightly on top.