Millionaire's Shortbread
Buttery shortbread, soft caramel and a snap of chocolate.

Before You Start
Three layers of pure indulgence: crisp shortbread, a thick chewy caramel made from condensed milk, and a chocolate top. It takes a little patience for the caramel, but there is no thermometer and no fuss.
Instructions
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1
Heat the oven to 170°C / 340°F and line a 20 cm square tin. Rub the shortbread butter, sugar and flour together to a dough, press into the tin and prick.
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2
Bake for 20 to 25 minutes until pale gold. Set aside.
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3
For the caramel, melt the caramel butter, brown sugar, condensed milk and golden syrup in a pan. Stir constantly over medium-low heat.
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4
Keep stirring for 8 to 12 minutes until it thickens and turns a deep golden colour and pulls from the base of the pan. Pour over the shortbread and cool.
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5
Melt the chocolate and spread over the set caramel. Chill for at least 2 hours.
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6
Let it sit at room temperature for 10 minutes before cutting, so the chocolate does not crack.
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💡 Baker's tips
- Stir the caramel the whole time so it does not catch and burn on the bottom.
- Cut with a hot, dry knife for clean edges through the chocolate.
🔀 Make it your own
- Sprinkle flaky salt over the chocolate for salted caramel bars.
- Use half milk, half dark chocolate on top.
📦 Storing & freezing
Airtight in a cool place for 5 days, or the fridge in warm weather. Freezes for 1 month.
❓ Frequently asked
How do I know the caramel is ready?
It thickens noticeably, turns deep golden, and pulls away from the base of the pan as you stir, usually after 8 to 12 minutes of steady bubbling.
How much is a cup of condensed milk in grams?
About 306 g per US cup, so 1¼ cups is close to a standard 397 g can. Use the condensed milk converter to match your tin.
Baking in a different unit? Use the cups ↔ grams converter or the recipe scaler to halve or double this recipe.