Preheat oven to 350 degrees F. Line a large baking sheet with a Silpat baking mat or parchment paper and set aside.
In a medium bowl, whisk together flour, baking powder, baking soda, and sea salt. Set aside.
Using a stand mixer, cream butter and sugars together for about 1 minute. Add in the eggs and vanilla and mix until combined.
Add the dry ingredients and mix on low until just combined.
Stir in the chopped Cadbury Mini Eggs, chocolate chips, and toasted coconut.
Form the cookie dough into balls, about 2 tablespoons of dough. Place on prepared baking sheet, about 2 inches apart.
Bake cookies for 10-12 minutes or until the edges are slightly golden brown. Remove from oven and sprinkle with sea salt. Let cookies cool on the baking sheet for 5 minutes. Transfer to a wire cooling rack and cool completely.
See the post for instructions on how to toast coconut. You can chill the cookie dough for 24 to 72 hours if you want to enhance the flavor of the cookies. The cookies will keep in an airtight container for 3-4 days. You can also freeze the cookie dough and baked cookies.