The night before, prepare homemade vegan vanilla ice cream or otherwise have vegan ice cream on hand. More homemade ice cream options in post + Notes.

Make a batch of Gluten Free Vegan Oat Flour Chocolate Chip Cookies. More gluten free vegan cookie options listed in the post + Notes. Cool completely.

Line a large baking sheet with parchment paper or wax paper. Place this sheet, lying flat, in the freezer. You will need it later.

Lay a sheet of parchment or wax paper on a clean, flat surface. Lay half of the batch of cookies (10-12, depending on how many you made) facedown (flat side up) on the prepared surface, evenly spaced apart.

Using a medium cookie scoop, scoop about 2 tablespoons ice cream and drop onto 1 cookie. Using a rubber spatula, smooth and flatten ice cream into a flat, even layer. Place a cookie face-up on top of the ice cream layer. Press down to create an ice cream sandwich. Optionally, sprinkle and press 1 teaspoon of mini chocolate chips onto the sides of the sandwich, where the ice cream peeks out.

Immediately place ice cream sandwich into the freezer, onto the prepared baking sheet. Repeat for all ice cream sandwiches.

Chill until ice cream is firm or enjoy immediately if sandwiches aren't too melty. Storing instructions below.