Move the oven rack to the middle position and preheat to 325 F (160 C) degrees.
Cream the 170 grams cultured unsalted butter and the ¾ cup dark brown sugar and ½ cup evaporated cane sugar together until light and fluffy. Add the 2 large eggs one at a time and mix till combined after each addition. Add the 1 teaspoon vanilla extract, 2 teaspoons cinnamon and ¼ teaspoon cayenne pepper, mixing until combined.
170 grams cultured unsalted butter, ¾ cup dark brown sugar, ½ cup evaporated cane sugar, 2 large eggs, 1 teaspoon vanilla extract, 2 teaspoons cinnamon, ¼ teaspoon cayenne pepper
In a separate bowl, whisk the f2 cups all-purpose flour, ¾ teaspoon baking powder and ¼ teaspoon kosher salt together. Add it to the butter mixture and mix until just combined. Add the 1 ½ cups bittersweet chocolate chips and stir in by hand.
2 cups all-purpose flour, ¾ teaspoon baking powder, ¼ teaspoon kosher salt, 1 ½ cups bittersweet chocolate chips
Scoop roughly ¼ cup of batter for each cookie onto a parchment-lined baking sheet (it's okay if the balls are jagged) leaving enough room for them to spread. Bake 1 sheet at a time for about 12-15 minutes each or until the edges are set, but the middle is still soft. You may need to experiment with your oven to figure out the perfect cooking time. As these cookies bake, they go from chewy to cakey to crisp, so you can change their characteristic by the amount of time you bake them for.
To get the chewy center, allow them to cool on the pan (not on a rack).