The Dunkin’ Pumpkin Pie Coffee Chiller is Dunkin’s only frozen drink in this year’s fall pumpkin lineup — and the one with the genuinely unusual construction. While every other fall 2026 Dunkin’ pumpkin drink is an iced or hot latte, the Coffee Chiller is fully blended, closer to a milkshake than a coffee beverage. That alone sets it apart.
What makes it interesting is where the marshmallow cold foam goes.
Why the Foam Goes Inside the Cup
Every other foam-topped drink at Dunkin’ — the Pumpkin Cloud Dunkalatte, the Tiramisu Cloud Latte, the Pumpkin Patch Cloud Latte — puts its foam on top. You drink through it once and it’s gone, replaced by the plain drink underneath.
The Pumpkin Pie Coffee Chiller inverts that. Dunkin’s own description: “a Marshmallow Cold Foam drizzle inside the cup.” The foam goes in first, coating the interior walls, and then the frozen coffee base is poured on top of it and around it.
The effect when drinking: every draw of the straw pulls through a streak of marshmallow where the foam clings to the cup walls. You don’t lose it after the first few sips — it’s there the whole way down. The marshmallow flavor is more consistent and persistent than a top-float layer would give you.
To replicate this at home, the step happens before you blend anything. Drizzle the cold foam around the inside of a clear cup, rotate it so the foam coats the walls evenly, and set the cup upright. Then pour the blended coffee base in around it.
The Coffee Ice Cube Method
The single technique that separates a good frozen coffee from a mediocre one is how you handle dilution.
Regular ice blended with brewed coffee dilutes as it melts, dropping the coffee flavor before the drink is finished. After about five minutes at room temperature, a regular ice-and-coffee blend tastes thin.
Coffee ice cubes solve this by making the ice itself the coffee. As the cubes melt during blending, they release more coffee — not water. The drink stays bold and consistent from the first sip to the last drops. The blend also stays thicker longer because there’s no extra water phase.
To make them: brew a strong pot of coffee using double the normal grounds-to-water ratio, or use undiluted cold brew concentrate. Cool it to room temperature, pour into an ice cube tray, and freeze. Four hours is the minimum; overnight gives a fully solid cube that blends more cleanly. A standard 14-cube tray holds enough for two or three drinks.
If you only have regular ice on hand, use cold brew concentrate as the liquid instead of brewed coffee — the concentrate is strong enough to hold some flavor even with dilution from regular ice. It’s a reasonable same-day workaround, though the result is slightly looser than the coffee-cube version.
Marshmallow Cold Foam vs. Sweet Cold Foam
Dunkin’s fall 2026 drinks use two different foam types and it’s worth understanding which does what.
Sweet Cold Foam — used on the Pumpkin Cloud Dunkalatte and Pumpkin Patch Cloud Latte — is plain heavy cream and milk, lightly sweetened, no flavoring. It’s a blank, creamy cap that lets the pumpkin swirl underneath carry all the seasonal flavor.
Marshmallow Cold Foam — used on this Coffee Chiller, the Tiramisu Cloud Latte, and the Tiramisu Marshmallow Matcha — adds marshmallow fluff to the cream, giving it a distinctly sweet, vanilla-marshmallow character. It’s noticeably more dessert-flavored than plain sweet foam.
For a frozen drink like this Coffee Chiller, the marshmallow foam is the right choice: the frozen coffee base is bold and coffee-forward, and the marshmallow foam provides a sweeter, lighter counterpoint with each sip.
Home marshmallow cold foam: combine 3 tablespoons cold heavy cream, 1 tablespoon marshmallow fluff, and 1/4 teaspoon vanilla extract. Froth with a handheld frother for 25–30 seconds. The fluff dissolves into the cream as you froth, thickening it to a spoonable but pourable consistency. It holds structure for about 15 minutes before it starts to relax, so make it last.
Pumpkin Swirl: Two Routes
Torani Pumpkin Pie Sauce (easiest) is a sweetened pumpkin-flavored syrup available in most grocery stores through the fall season and from Amazon year-round. Use 3 tablespoons per drink. It’s sweeter and spice-forward rather than pumpkin-forward — the flavor is closer to pumpkin pie filling than fresh pumpkin.
Homemade pumpkin swirl (better depth): combine 3 tablespoons canned pumpkin purée, 3 tablespoons brown sugar, 3 tablespoons water, 1/2 teaspoon pumpkin pie spice, and 1/4 teaspoon vanilla extract in a small saucepan. Stir on medium-low heat for 4–5 minutes until the sugar fully dissolves and the mixture thickens slightly. Strain through a fine-mesh strainer to remove pumpkin fiber, cool, and refrigerate. One batch covers 6–8 drinks and keeps up to 10 days. The homemade version is earthier and less sweet — closer to actual pumpkin, less candy-flavored.
For a frozen drink blended until smooth, either approach works. The homemade version’s texture advantage (it’s smoother than strained Torani) matters less here than it would in a latte where it floats visibly.
Dunkin’ Fall 2026 Pumpkin Lineup
All five pumpkin options launched August 19, 2026:
| Drink | Format | Base | Foam | Topping |
|---|---|---|---|---|
| Pumpkin Pie Coffee Chiller | Frozen blended | Coffee Chiller | Marshmallow inside | Whipped cream, caramel, cinnamon sugar |
| Pumpkin Cloud Dunkalatte | Iced espresso | Coffee milk | Sweet Cold Foam on top | Cinnamon sugar |
| Pumpkin Patch Cloud Latte | Iced espresso | Whole milk + vanilla | Sweet Cold Foam on top | Cinnamon sugar |
| Nutty Pumpkin Protein Latte | Iced espresso | Protein milk | None | None |
| Pumpkin Spice Signature Latte | Hot or iced | Whole milk | None | Whipped cream, caramel, cinnamon sugar |
The Coffee Chiller is the pick for a dessert-forward frozen treat. The Cloud Dunkalatte or Cloud Latte are better if you want a cold espresso drink with a foam layer. The Protein Latte is the functional choice at 17g protein per medium.
Variations
No blender. You can approximate this by shaking cold brew concentrate, pumpkin swirl, and milk vigorously with ice in a cocktail shaker — strain into the foam-coated cup. The texture will be thinner and icier, not smooth and blended, but the flavor and the foam-inside effect are preserved.
Dairy-free. Use oat milk as the blender liquid (barista-style oat milk froths and blends better than standard). For the foam, oat milk alone doesn’t froth to the right consistency — use a coconut cream–based marshmallow foam substitute: 3 tablespoons of canned coconut cream plus 1 tablespoon of marshmallow fluff, frothed cold.
Extra coffee punch. Add one shot of espresso (cooled, not hot) to the blender in addition to the coffee ice cubes. This deepens the coffee flavor and increases caffeine without changing the frozen texture.
Mocha Pumpkin Chiller. Add 1 tablespoon of chocolate sauce to the blender with the pumpkin swirl — mocha and pumpkin are an underused pairing. Swap the caramel drizzle on top for more chocolate sauce.
More Fall 2026 Dunkin’ Recipes
- Dunkin’ Pumpkin Cloud Dunkalatte — iced espresso with coffee-infused milk, pumpkin swirl, sweet cold foam
- Dunkin’ Pumpkin Spice Signature Latte — the returning classic with whipped cream and caramel
- Dunkin’ Tiramisu Marshmallow Matcha — marshmallow foam technique in a non-coffee context
- Starbucks Caramel Frappuccino — the gold-standard frozen blended coffee technique
See all Dunkin’ copycat recipes →
