Preheat your oven to 350°F (175°C) to ensure even baking and perfect golden-brown cookies.
In a large mixing bowl, combine the room temperature butter, dark brown sugar, and granulated sugar. Beat on medium speed with an electric mixer until light and fluffy, about 2-3 minutes.
Crack the eggs into the bowl one at a time, mixing well after each addition. Add the vanilla extract and mix until smooth and creamy.
In a separate bowl, whisk together the cake flour, bread flour, baking soda, baking powder, and salt to evenly distribute the dry ingredients.
Gradually add the dry ingredient mixture to the wet mixture, stirring until just combined. Avoid overmixing; a few flour streaks are fine.
Gently fold in the semi-sweet chocolate chunks and chopped Heath bars or caramel bits until evenly distributed.
Using a cookie scoop or tablespoon, drop rounded portions of dough onto a parchment-lined baking sheet, spacing about 2 inches apart.
Sprinkle a pinch of flaked sea salt on top of each cookie dough mound to enhance flavor.
Bake the cookies in the preheated oven for 10-12 minutes, until edges are lightly golden but centers may still look slightly underbaked.
Remove cookies from the oven and let cool on the baking sheet for 5 minutes before transferring to a cooling rack. Enjoy warm or at room temperature.