Healthy Dirt Cups

Whisk the milk, cocoa, maple syrup, cornstarch and salt in a saucepan. 2. Cook over medium heat, whisking constantly, until it thickens and bubbles, about 5 minutes. 3. Stir in the vanilla, then cover and chill until cold. 4. Whisk the Greek yogurt into the cold pudding until smooth. 5. Crush the cookies into crumbs. Spoon the pudding into 6 cups, top with the cookie 'dirt' and tuck in gummy worms.