01 -
Gently twist apart 12 Oreo cookies so the mint filling stays on one half. Set those filling-side halves aside for toppers. Crush the remaining cookies plus the plain halves into fine crumbs using a food processor or a sealed bag and a rolling pin.
02 -
Whisk the instant pudding mix with the half-and-half and green food coloring for 1 to 2 minutes until it begins to thicken. Let it sit for 5 minutes to set up properly.
03 -
Stir the thawed whipped topping into the green pudding until no streaks remain and the mixture is a uniform pale green.
04 -
Sprinkle about 2 tablespoons of cookie crumbs into the bottom of each clear cup. Add a layer of pudding mixture. Repeat the layers until the cup is nearly full, ending with a cookie crumb layer on top.
05 -
Cover the cups and refrigerate for at least 1 hour so the pudding firms up and the layers hold their shape.
06 -
Press one large and one small candy eyeball into the exposed mint filling of each reserved cookie half. Stand the cookie upright on top of each cup just before serving. Add sprinkles if desired.