Creating these amazing chocolate-mint ice cream sandwiches is easy and can be done with the following steps:

1. Preheat Oven: Preheat your oven to 350°F (175°C).
2. Mix Dry Ingredients: In a medium bowl, combine the flour, cocoa powder, baking soda, and salt.
3. Cream Butter and Sugars: In a large bowl, beat the softened butter, granulated sugar, and brown sugar until creamy.
4. Add Egg and Extracts: Beat in the egg, vanilla extract, and peppermint extract until combined.
5. Combine Mixtures: Gradually add the dry ingredients to the wet ingredients, mixing until a dough forms.
6. Shape Cookies: Roll the dough into small balls and place them on a baking sheet, leaving space between each.
7. Bake: Bake for 10-15 minutes, until the edges are set but the centers are still soft. Remove from the oven and let cool.
8. Prepare Ice Cream: Soften the mint chocolate chip ice cream slightly at room temperature for easier spreading.
9. Assemble Sandwiches: Take one cookie, place a generous scoop of mint chocolate chip ice cream on the flat side, and top it with another cookie, pressing gently.
10. Freeze: Place assembled sandwiches in the freezer for about 30 minutes to set.

Once these sandwiches are frozen solid, they’ll be perfect for serving or for a late-night treat!