Preheat oven to 350°F. Spray a 9×13" pan with cooking spray.
Combine dry ingredients. Set aside.
In a medium-sized bowl, mix melted butter, sugars, eggs, and vanilla. Add combined dry ingredients.
Add in the chocolate chips and mix well.
Pour into prepared pan and top with rough chopped Cadbury Mini Eggs (you'll want to make sure they're chopped - if they're too big they'll be too big to bite easily ;)
Bake for 25 minutes until just set. You only want them barely set so they don't turn cakey. Let cool for 10-15 minutes then cut and enjoy!
These also taste great chilled.