01 -
Turn the oven on to 350°F (175°C). Cover a baking tray with parchment paper for easy cleanup.
02 -
Stir together the cake mix, eggs, vanilla, and vegetable oil in a big bowl. Mix it all up until it's nice and smooth.
03 -
Gently mix in the white chocolate chips (if you’re adding them) and M&Ms candies.
04 -
Scoop some dough using a tablespoon or cookie scoop. Drop them onto the lined baking tray, leaving about 2 inches between each.
05 -
Put them in the oven and bake for about 10–12 minutes. Watch for the centers to stay soft but set.
06 -
Take them out and leave them on the baking tray for 5 minutes before moving to a wire rack to cool fully.