The dough for shortbread can look sandy for a moment before the butter pulls it together. I mix it just until it becomes cohesive, then roll it between parchment so it stays easy to handle and the rounds keep their shape. These Twix Cookies layer that buttery cookie with soft caramel and a smooth milk chocolate top, giving each bite the same sweet, crisp-and-chewy contrast I want from a candy-bar-inspired cookie.
The order of the layers matters more than any fancy technique. The cookies need to cool completely before the caramel goes on, and the caramel needs time to set before it gets covered with chocolate. That pause keeps the toppings where they belong instead of blending into one sticky layer. Once the chocolate sets, you get a tender shortbread base, a chewy caramel center, and a clean chocolate finish.
Kitchen Note
Rolling the dough between parchment sheets keeps it from sticking without working extra flour into the shortbread. It also makes the thin sheet much easier to lift and cut cleanly.
Save these Twix Cookies for a bake-ahead treat with crisp shortbread, chewy caramel, and a smooth chocolate top.
Why the Cookie Base Has to Be Fully Cool Before the Caramel Goes On
These cookies have three distinct layers, and the shortbread is the foundation for both. A warm cookie softens the caramel as soon as it lands, making it harder to spread into an even layer. It can also leave the bottom of the cookie delicate just when you need it to support the topping.
Cutting the dough into 2 1/2-inch rounds gives you a sturdy, even-sized base, with enough room for caramel and chocolate without turning each cookie into a thick stack. Spread the caramel nearly to the edge, rather than letting it spill over. After it has stood for 20 minutes, the surface is set enough to take the chocolate without the two layers running together. That short wait is what gives each cookie a neat cross-section when you bite in.
The chocolate goes on last and covers the caramel, so there’s no need to fuss over a perfectly glossy finish. A smooth, even coat is what matters. Let it firm up at room temperature before moving the cookies; the layers will hold their shape much better once the top is set.
Why Soft Caramels and Coconut Oil Give These Cookies Their Twix-Like Layers
- Unsalted butter — Softened butter creams smoothly with the sugar and gives the shortbread its tender, rich texture. The inexpensive supermarket kind works well here; it just needs to be softened, not melted.
- All-purpose flour — This gives the cookies enough structure to hold their toppings. Measure it without packing it into the cup, since extra flour can leave the dough dry and the baked rounds more crumbly.
- Vanilla and granulated sugar — Vanilla rounds out the buttery cookie, while granulated sugar keeps the base crisp rather than making it cakey. Imitation vanilla works if that’s what you have; use a good granulated sugar, but there’s no special brand needed.
- Soft caramels and heavy cream — Soft caramels melt into a thick, chewy layer, and a little cream helps them turn smooth enough to spoon and spread. Hard candies or a thin squeeze-bottle caramel aren’t a like-for-like swap: they won’t make the same soft, settable topping.
- Milk chocolate chips — Milk chocolate keeps the topping sweet and mellow against the buttery cookie. A familiar baking-chip brand is fine; the coconut oil helps the melted chocolate loosen enough to spread in a thin coat.
- Coconut oil — This helps the chocolate melt smoothly and makes it easier to spread over the caramel. Use refined coconut oil if you don’t want a noticeable coconut aroma; virgin coconut oil can add one.
Building the Shortbread, Caramel, and Chocolate in Separate Layers
Mix and Roll a Cohesive Shortbread Dough
Heat the oven to 350°F and line two baking sheets with parchment paper. Beat the softened butter and sugar in a large bowl until creamy, about 2 minutes, then mix in the vanilla. Add the flour and salt and mix on low just until the dough comes together; stop once there are no loose dry patches. Roll the dough between parchment sheets to 1/4 inch thick and cut 2 1/2-inch rounds.
Bake Just Until the Edges Turn Golden
Arrange the rounds on the prepared sheets and bake for 12–14 minutes. Watch the edges: they should just begin to turn golden while the tops stay fairly pale. Leave the cookies on the baking sheets for 10 minutes before transferring them to a rack. Let them cool completely before adding caramel, or the warm base will soften under the topping.
Warm and Spread the Caramel
Put the unwrapped soft caramels and heavy cream in a small saucepan over low heat. Stir often for about 5–7 minutes, until the mixture looks smooth with no visible lumps. Spoon about 1 teaspoon onto each cooled cookie and spread it nearly to the edge. Leave the cookies undisturbed for 20 minutes so the caramel can set before the next layer goes on.
Melt the Chocolate in Short Bursts
Combine the milk chocolate chips and coconut oil in a microwave-safe bowl. Heat in 20-second bursts, stirring between each one, and stop when the chocolate is smooth; short intervals help prevent scorching. Spoon about 2 teaspoons over each cookie and spread it to cover the caramel. Let the cookies stand at room temperature for 30–45 minutes, until the chocolate has set.
Two Useful Swaps for Changing These Twix Cookies
Use dark chocolate for a less-sweet finish
Replace the milk chocolate chips with dark chocolate chips and keep the coconut oil. The firmer cocoa flavor balances the sweet caramel, so the finished cookies taste less candy-sweet while keeping the same layered texture.
Make the shortbread gluten-free
Use a cup-for-cup gluten-free baking flour blend that includes xanthan gum in place of the all-purpose flour. Mix only until the dough holds together, since gluten-free shortbread can be more fragile to roll and lift; the flavor stays buttery, though the rounds may have a slightly more delicate bite.
Storage and Reheating
- Room temperature: Keep the fully set cookies in an airtight container in a cool spot for up to 4 days.
- Refrigerator: Store airtight for up to 1 week; the caramel firms up when cold, so let cookies sit out briefly before eating.
- Freezer: Freeze fully set cookies in an airtight container, with parchment between layers, for up to 2 months. Thaw them in the covered container at room temperature.
- Reheating: These are best at room temperature, not warmed. Don’t microwave a whole cookie; the caramel can turn runny before the chocolate topping softens evenly.
Questions That Come Up While Making Twix Cookies
Twix Cookies
Ingredients
Equipment
Method
- Heat the oven to 350°F.
- Line two baking sheets with parchment paper.
- Beat the butter and sugar in a large bowl until creamy, about 2 minutes.
- Beat in the vanilla.
- Add the flour and salt and mix on low just until a cohesive dough forms.
- Roll the dough between sheets of parchment to 1/4 inch thick.
- Cut the dough into 2 1/2-inch rounds.
- Arrange the rounds on the prepared baking sheets.
- Bake for 12–14 minutes, until the edges are just beginning to turn golden.
- Cool the cookies on the baking sheets for 10 minutes.
- Transfer the cookies to a rack to cool completely.
- Warm the caramels and heavy cream in a small saucepan over low heat, stirring often, until smooth, about 5–7 minutes.
- Spoon about 1 teaspoon of caramel onto each cooled cookie and spread it nearly to the edge.
- Let the cookies stand for 20 minutes to set.
- Melt the chocolate chips and coconut oil in a microwave-safe bowl in 20-second bursts, stirring between bursts until smooth.
- Spoon about 2 teaspoons of chocolate over each cookie and spread to cover the caramel.
- Let the cookies stand at room temperature for 30–45 minutes until set.