Related Clues:
- Hydrox rival, now that Hydrox is back on the market
- One of a half-trillion sold since 1912
- Cookie-based Jell-O pudding flavor
- Milk-and-cookies choice
- Its parts may be eaten separately
- Triple-decker cookies
- Snacks with milk
- Cookie sold in a blue package
- Creme-centered snack
- Vanilla ice cream add-in
- Lunchbox dessert item
- Cookie with three parts
- Ingredients in a McFlurry, perhaps
- Ice cream mix-in
- Cookie that once had "Sandwich" in its name