Preheat the oven to 350°F (180°C). Line a cookie sheet with either parchment paper or a silicone baking mat. Set aside.
In the bowl of a stand mixer or with an electric hand mixer, cream together the butter, brown sugar and granulated sugar.
3/4 cup (167g) salted butter, 3/4 cup (185g) packed brown sugar, 1/3 cup (76g) granulated sugar
Scrape the sides and add in the eggs and vanilla.
2 eggs, 1/2 tbsp vanilla
Add the flour, crushed waffle cones, baking soda, baking powder and salt. Mix until a soft dough forms.
2 1/3 cups (354g) all-purpose flour, 9 waffle cones, 1 tsp baking soda, 1/2 tsp baking powder, 1/2 tsp salt
Scoop the dough into 1 1/2 tbsp portions and arrange on the prepared baking sheet.
Bake at 350°F (180°C) for 10-12 minutes. DO NOT OVER COOK. They won't turn golden brown, they should expand and flatten slightly and no longer look wet on top when you pull them out. Allow them to cool on the pan for 5 minutes before transferring to a wire cooling rack.
Create sandwiches by scooping your favorite gelato and sandwiching it between two cool cookies. Enjoy!