1In a bowl, mix half a cup of regular sugar and three-fourth cup of dark brown sugar.
2Add one stick of room temperature Kerrygold butter and mix until well combined.
3Add one egg and beat until well mixed.
4In a separate bowl, combine one and a half cups of all-purpose flour, half a teaspoon of baking soda, a fourth teaspoon of baking powder, and one teaspoon of kosher salt.
5Add the dry ingredients to the wet ingredients and mix well.
6Add a cup and a half of Callebaut milk chocolate and half a cup of Callebaut semi-sweet chocolate, and stir to combine.
7Scoop the dough onto a baking sheet lined with parchment paper.
8Bake at 375 degrees Fahrenheit for eight to ten minutes.