Caramel shortcake, millionaire’s shortbread, Twix cake; this indulgent treat goes by many different names. In this article, I’ll explain where those names come from and share my easy recipe, along with all my tips.

Cookie, Caramel & Chocolate

This millionaire shortbread is really one of my favorites and I’m sure you’ll love it too. Why?

  • Tastes like a Twix, but better! Buttery shortbread, gooey caramel and crisp chocolate on top
  • Quick caramel that only takes 15 minutes to make
  • Great make-ahead dessert – it keeps for days and can be frozen too!

Recipe Ingredients

Making millionaires shortbread is really easier than you think and you don’t need a lot of special ingredients either:

  • unsalted butter – preferably really cold for best results. You will also need extra butter for the filling. This additional butter doesn’t have to be cold
  • sugar – you add some sugar into the crust to give it extra flavor. You also need dark brown sugar to add to the filling
  • self-rising flour – to give it a little bit of lift
  • condensed milk – you need one can of condensed milk for the filling
  • chocolate – to give this millionaires shortbread a fancier look, I added two types of melted chocolate. Both white and milk chocolate. You can also use dark chocolate if you prefer.
Millionaires shortbread-4

How To Make Caramel Shortbread/Millionaires Shortbread

Making this Twix cake is a three-part process.

You start by making the buttery crust. Cream butter, sugar and salt together until smooth. Add the self-rising flour and mix until combined.

Press the dough into a greased springform pan. Prick the base with a fork and bake at 350˚F/180˚C (conventional oven) for 20 minutes or until cooked through.

Making the caramel filling

For the filling, you need to place a small saucepan on medium heat. Add the condensed milk and the brown sugar. Stir until the sugar has dissolved.

Now increase the heat and continue stirring with a whisk. Bring to a boil and let it cook for 10 minutes while you keep stirring.

The caramel filling is ready when it has thickened enough. Pour over the cooled down cookie base and use a spatula or something similar to spread it evenly. Place in the fridge to let it cool a bit.

Making the chocolate topping

Once the caramel has cooled down enough, melt the milk chocolate in a double boiler. At the same time you can add the white chocolate into a disposable piping bag and melt it in the microwave.

Spread the melted milk chocolate over the caramel layer, and spread it evenly.

Cut a small tip off the piping bag with the white chocolate and pipe even lines from left to right. Once that is done, use a knife or a toothpick to drag it through the chocolate to create a pattern.

Let the chocolate set completely before you slice the millionaires shortbread.

BAKING TIP: I like to use a springform pan for this kind of recipe. It makes it easy to remove the caramel shortcake from the pan and keeps cleanup simple.

Storing Millionaires Shortbread

You can store Millionaires shortbread outside of the fridge in an airtight container. Make sure not to place it in the fridge as it will get too hard and will be difficult to slice. It will keep outside of the fridge for up to a week.

Can I freeze millionaires shortbread?

Yes you can freeze millionaires shortbread perfectly! Properly wrap in plastic wraps and freezer containers and store for up to 3 months.

More Chocolate-Caramel Treats

If you’re addicted to the irresistible combination of chocolate and caramel, you aren’t alone! Here at Laura’s Bakery, more sweet treats with this flavor combination are constantly being added:

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What’s in A Name?

There are so many different names for this delicious dessert. But what’s the difference between caramel shortcake, chocolate caramel shortbread, millionaire’s shortbread, caramel slice, millionaire’s shortcake, or Twix cake?

Where it comes from

Millionaire’s shortbread is essentially the same as caramel shortcake. The different names come from the many places around the world where this recipe is popular.

The recipe originally comes from Scotland, where shortbread has been enjoyed since the 12th century. A few centuries later, the Scots came up with the idea of combining it with caramel and chocolate, pure heaven!

Besides Scotland, caramel shortbread is also very popular in countries like Australia, New Zealand (where it’s often called Wellington squares), and England.

A fun detail: in New Zealand, it’s said to be a New Year’s Day tradition to serve a piece to the first guest who enters your home.

Why it’s called millionaire’s shortbread

The name definitely raises some questions. Originally, there was shortbread: a crumbly, buttery cookie similar to what you might know as a classic shortbread cookie.

To turn it into millionaire’s shortbread, you add a thick layer of caramel and a generous layer of chocolate.

These additions make it a richer, more indulgent version of the original shortbread, hence the name “millionaire’s.” It’s believed the name refers to how luxurious and decadent the treat is.

Billionaire’s shortbread and how this differs

In this variation, salt is added to the caramel layer of millionaire’s shortbread. Billionaire’s shortbread originates from the United States, where salted caramel is extremely popular.

Personally, I’d probably call it salted caramel shortcake, but hey, I might also be the one who added yet another name to the already long list (Twix cake!).

As you can see, the list of names for this recipe just keeps growing. 😉

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FAQ Millionaires Shortbread

Can I use a different pan?

Absolutely! I usually make it in a round pan like a cake, but caramel shortbread is often baked in a square or rectangular pan as well. In that case, you can cut it into bars or squares.

If you want to use this recipe as-is for a rectangular pan, use one that’s about 8 x 10 inches (20 x 25 cm).

How do I cut caramel shortbread neatly?

Tip #1: don’t store it in the fridge. It becomes very hard and difficult to slice neatly. I always keep mine at room temperature and use a large, sharp knife.

For extra clean cuts, you can run the knife under hot water, dry it, and then slice. The knife will glide right through.

Can I use a different cookie base?

If you’re not a fan of crumbly shortbread, you can definitely switch it up. Try a sugar cookie base, or use store-bought cookies crushed and mixed with melted butter. You may need to experiment a bit with quantities, but let me know how it turns out!

My caramel is too hard. What happened?

You probably cooked it a little too long or at too high a temperature. Cooking times can vary depending on your pan and stove. It’s best to stop just before it seems thick enough. Keep in mind that caramel will firm up more as it cools.

My (white) chocolate turned grainy or turned white. Help!

White chocolate burns easily, which can cause it to become grainy. Melt it slowly and gently for best results. Also, make sure your bowl doesn’t touch the water when using a double boiler, as that can make it too hot.

If your chocolate develops a white coating, it likely wasn’t properly tempered.

 

Caramel shortbread or millionaires shortbread

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Caramel shortcake recipe

Preparation30 minutes
Cooking20 minutes
Total50 minutes
Servings: 12 people

Ingredients 

Base

  • 120 grams unsalted butter cold
  • 55 grams sugar
  • Pinch salt
  • 180 grams self-rising flour

Filling

  • 60 grams unsalted butter
  • 1 can sweetened condensed milk 14 oz / 397 g
  • 4 tbsp dark brown sugar

Topping

  • 200 grams milk chocolate
  • 40 grams white chocolate

Equipment

  • 10-inch (26 cm) springform pan

Instructions

Make the shortbread base

  • Cream the butter, sugar, and salt until smooth. Gradually add the self-rising flour and mix until fully incorporated.
  • Press the dough into a greased pan. Prick the base with a fork and bake at 350°F /180°C (conventional oven) for 20 minutes, or until cooked through.

Making the caramel filling

  • Melt the butter in a saucepan. Add the sweetened condensed milk and brown sugar. Stir over low heat until all the sugar has dissolved.
  • Then increase the heat and continue stirring with a whisk. Bring the mixture to a boil and let it cook for about 10 minutes, stirring constantly.
  • The caramel filling is ready when it has thickened sufficiently. Pour the filling over the cooled cookie base and spread it evenly with a spatula. Place the pan in the refrigerator for a short time to allow the caramel to cool.
  • In this caramel recipe, you can see step-by-step photos showing exactly how to make the caramel.

Making the chocolate topping

  • Once the caramel has cooled, melt the milk chocolate using a double boiler. As soon as the chocolate has fully melted, remove the bowl from the pan of hot water. Set it aside, the chocolate will stay warm enough and won’t immediately set.
  • Meanwhile, place the white chocolate in a disposable piping bag and melt it in the microwave.
  • Pour the milk chocolate over the caramel and spread it evenly.
  • Cut a small tip off the piping bag and pipe lines from left to right over the surface of the cake. Take a knife or toothpick and drag it through the chocolate from top to bottom to create a pattern. First go downward, move slightly to the side, then go upward. Repeat this process across the entire cake to create the pattern. Let the chocolate set completely before slicing.
Tips

When thickening the caramel, it’s best to stop cooking when it still seems slightly too thin. As it cools, it will continue to thicken and reach the perfect consistency.
How to store

Do not store this shortcake in the refrigerator, as the caramel will become very firm and difficult to cut. Covered tightly, it will keep at room temperature for up to one week. Caramel shortcake also freezes well. Store it in an airtight container and it will keep for up to three months.

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