Step 1: Preheat Your Oven: Start by preheating your oven to 350°F (175°C).
Step 2: Cream the Butter and Sugars: In a large mixing bowl, combine the softened unsalted butter, granulated sugar, and packed light brown sugar. Beat until light and fluffy, about 2-3 minutes.
Step 3: Add the Egg and Vanilla: Add the large egg and the teaspoon of pure vanilla extract to the mixture. Beat until fully incorporated.
Step 4: Combine Dry Ingredients: In another bowl, whisk together the all-purpose flour, baking soda, and salt.
Step 5: Mix Dry Ingredients with Wet Ingredients: Gradually add the dry ingredient mixture to the wet ingredients, mixing on low speed until just combined.
Step 6: Fold in the Kit Kats and Chocolate Chips: Use a spatula to gently fold in the Kit Kat pieces and white chocolate chips.
Step 7: Scoop and Bake: Drop rounded tablespoons of cookie dough onto a baking sheet lined with parchment paper, spacing them about 2 inches apart. Bake for 10-12 minutes or until the edges are lightly golden.
Step 8: Cool and Enjoy: Let the cookies cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.
