01 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
02 - Whisk together flour, baking soda, baking powder, and salt in a medium bowl. Set aside.
03 - Beat softened butter with brown sugar and granulated sugar until light and fluffy, about 2-3 minutes.
04 - Add eggs one at a time, beating well after each addition. Mix in vanilla extract.
05 - Gradually add dry ingredients to wet ingredients, mixing until just combined.
06 - Gently fold in chopped mini eggs and chocolate chips, if using.
07 - Scoop tablespoon-sized balls onto prepared baking sheets, spacing 2 inches apart.
08 - Press extra mini egg pieces on top of each dough ball for visual appeal.
09 - Bake for 10-12 minutes until edges are golden and centers appear set.
10 - Let cookies cool on baking sheet for 5 minutes, then transfer to wire rack to cool completely.