01 -
Combine the softened butter and brown sugar in a bowl and mix until fluffy.
02 -
Incorporate the vanilla extract into the mixture and stir well.
03 -
Gradually add the all-purpose flour and sweetened condensed milk, mixing until smooth.
04 -
Fold in 1 cup of chocolate chips and all the M&Ms until evenly distributed.
05 -
Line a 9x13 baking dish with parchment paper.
06 -
Cover the dish with foil and freeze for two hours.
07 -
Melt ½ cup chocolate chips and combine with peanut butter to create the topping.
08 -
Spread the topping evenly over the frozen cookie dough.
09 -
Cover the dish with foil once more and freeze for one additional hour.
10 -
Cut the frozen dough into pieces and enjoy.