Follow these straightforward steps to create your own Chocolate Hazelnut Crunch Cookies:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper.
2. Combine Dry Ingredients: In a bowl, whisk together the flour, baking soda, salt, and cocoa powder until nicely mixed.
3. Cream Butter and Sugars: In a separate bowl, beat the softened butter, granulated sugar, and brown sugar together until creamy and smooth.
4. Add Egg and Vanilla: Mix in the egg and vanilla extract until well combined.
5. Combine Wet and Dry Mixtures: Gradually add the dry ingredients to the wet mixture, mixing until just combined.
6. Fold in Hazelnuts and Chocolate Chips: Gently fold in the chopped hazelnuts and chocolate chips until evenly distributed in the dough.
7. Scoop the Dough: Using a cookie scoop or spoon, drop about 1.5 tablespoons of dough onto the prepared baking sheet, spacing them a few inches apart.
8. Bake: Bake in the preheated oven for 10-12 minutes, or until the edges are set but the centers are still soft.
9. Cool the Cookies: Remove from the oven and let them cool on the baking sheet for about 10 minutes before transferring them to a wire rack to cool completely.
10. Enjoy: Once cooled, enjoy your delicious Chocolate Hazelnut Crunch Cookies with a glass of milk or your favorite beverage!