Beat sugar and butter together in a large bowl of an electric mixer using the paddle attachment until light and fluffy, about 3 to 4 minutes.
Add the eggs and vanilla and beat until combined, about 1 minute, scraping down the side of the bowl once during beating.
Add the flour, cocoa, baking powder, baking soda, salt, food coloring and chocolate chips. Beat until a smooth dough forms (it will look very similar in consistency to pie dough). Wrap dough thoroughly in plastic wrap and chill in the fridge for at least 2 hours or overnight if time permits (about 8 hours). If you’ve left the dough in the fridge longer, it might be a bit stiff and need to sit at room temperature for 30 minutes before rolling.
Preheat the oven to 350°F (180°C) or 325°F (160°C) fan-forced (what I used). Line 3 baking sheets with parchment paper.
Roll the cookie dough into rounded tablespoon balls. Roll each ball in sprinkles. Place about 2 inches (5cm) apart on the baking sheets to allow for spreading. Bake for 12 to 14 minutes until cookies are cooked and have spread (see the pics). If you're not use a fan-forced oven, then make sure to move the baking sheets around halfway through cooking. Let stand on the baking sheets for 5 minutes before removing to a wire rack to cool completely. The longer the cookies cook, the crispier they are so how long you cook them really depends on whether you prefer a soft or crisp cookie, or somewhere in between. Store in airtight jars when completely cooled. Makes about 40.