Preheat a fan-forced oven to 150C / 300F (170C/320F for no fan). Line two large baking sheets with baking paper. Set aside.
In a large mixing bowl add the flour, cocoa powder, baking powder and salt. Use a whisk to combine. Set aside.
In a separate large bowl add both sugars and softened butter (make sure it’s really soft but not melted) and milk and use an electric hand beater or stand mixer fitted with a paddle attachment to beat until pale and creamy, about 2-3 minutes.
Stop the mixer and scrape down the bowl using a spatula. Add the egg and vanilla extract and mix until well combined.
Stop the mixer, scrape down the bowl. Add the dry ingredients and 1 cup (200g) M&M’s into the bowl and use a spatula to mix until a dough forms. Use a cookie scoop that holds 2 tbsp of cookie dough and roll into 14 balls (6 on each sheet). Bake for 8 minutes. The cookies will be very soft when they come out of the oven.
To get perfectly round cookies, use a round cookie cutter a little larger than your cookies and shuffle it around the cookies to shape them into rounder cookies. Finish with extra M&M’s on top. Allow to cool completely before serving.
Notes
Storage - Cookies can be stored in an airtight container for up to three days.Nutrition - is based on per cookie. This recipe makes 12 cookies.A note on measurements - this recipe is offered in weight measurements. This is in an effort to offer the most accurate way to get the best results. Cup measurements simply aren’t accurate enough for a recipe that needs precision and cup sizes differ depending on where you are in the world. To learn more about how to measure ingredients using digital kitchen scales, click here!