1. Preheat oven to 350 degrees Fahrenheit. Line a baking sheet with parchment paper.
2. Cream sugar, eggs, and vanilla. Mix in flour, oil, baking soda, and 3/4 of the sandwich cookies.
3. Place two tablespoons-sized balls on baking sheet, spread out. Sprinkle with crushed sandwich cookies.
4. Bake for 10–12 minutes, until edges begin to crisp.