1 c butter, cold and cubed into 1/2-inch pieces
1/4 c white sugar
3/4 c light brown sugar
1 egg
1.5 c flour
1/4 tsp kosher salt
1/2 tsp baking powder
1/4 tsp baking soda
4 Heath candy bars chopped into roughly 1/2-inch pieces
1/2 c semi-sweet chocolate chips
Preheat oven to 375℉. Line a large baking sheet with parchment paper. Combine the butter and both sugars in a mixing bowl and beat until smooth. Add the eggs and beat again until fully incorporated. Whisk together the flour, salt, baking powder, and baking soda. Slowly add the dry ingredients to the wet ingredients while beating to combine.
Stir in the chopped candy bars, toffee bits, and chocolate chips. Use a medium-sized scoop to place generous 2 Tbs sized scoops of dough onto the lined cookie sheet. Bake 11-12 minutes until just barely browned around the edges. Remove from the oven while still soft, as soon as they are puffy and cracked on top.
Let cool for 2 minutes on the baking sheet. Transfer to wire cooling racks and allow the cookies to cool completely before storing them in an airtight container.
From Grace with Chocolate