Extra sea salt for sprinkling on cookies,if desired
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 3 minutes. Add in the eggs and vanilla and mix until combined. With the mixer on low, slowly add in the dry ingredients. Stir in the chocolate chips. Gently fold in 3/4 cup of the sprinkles.
Form the cookie dough into balls, about 2 tablespoons of dough. Pour the remaining 3/4 cup of sprinkles in a small bowl. Roll the cookies in the sprinkles, covering the entire cookie dough ball. Place on prepared baking sheet, about 2 inches apart. Sprinkle with sea salt, if desired.
Bake cookies for 10-12 minutes or until the edges are slightly golden brown. Remove from oven and let cookies cool on the baking sheet for 2-3 minutes. Transfer to a wire cooling rack and cool completely.
Note-I used rainbow sprinkles, but you can use your favorite sprinkles. The cookies will keep in an airtight container for 3-4 days. You can also freeze the cookies for up to 1 month.