Millionaire’s Shortbread Bars Recipe

The name reflects its indulgent nature — it’s richer than traditional shortbread, hence “millionaire.” The dessert originated in the UK and has become popular worldwide, often appearing in cafes, bakeries, and home kitchens.

Yes! Simply follow these steps: 

1. Let it cool and set completely – Make sure all the layers (especially the caramel and chocolate) are fully set before freezing.

2. Cut into squares – It’s easier to freeze and defrost individual portions.

3. Wrap tightly – Wrap each square in plastic wrap or parchment paper to prevent freezer burn and sticking.

4. Use an airtight container or freezer bag – Place the wrapped pieces in a container or zip-top bag. If stacking, separate layers with parchment paper.

5. Label and date – It will keep well for up to 3 months in the freezer.

How to Defrost: 

• Transfer to the fridge for a few hours or overnight.

• You can also let it sit at room temperature for about 30–60 minutes.

• Avoid microwaving to thaw, as it can cause the chocolate to melt or the caramel to become too soft.

1. Let Them Cool Completely

Before storing, ensure the cookies are fully cooled. Warm cookies can release steam, causing sogginess or mold.

2. Use an Airtight Container

• Store cookies in a tin or plastic airtight container.
• Layer with parchment or wax paper if stacking, to prevent sticking or breaking.

3. Room Temperature Storage

• Store in a cool, dry place away from sunlight or heat.
• Keeps well for up to 2 weeks.

Classic Caramel (No Condensed Milk)

Ingredients:

• 1 cup (200g) granulated sugar
• 6 tbsp (85g) unsalted butter, cubed
• 1/2 cup (120ml) heavy cream
• Pinch of salt (optional, for salted caramel)

Makes enough for an 8-inch (20 cm) square pan.

Method:

1. Melt the sugar:
   • In a medium heavy-bottomed saucepan, heat the sugar over medium heat.
   • Stir constantly with a heatproof spatula or wooden spoon as it melts. It will clump before it liquefies — this is normal.
   • Keep going until it turns a deep amber color. Be careful not to burn it.

2. Add the butter:

1. • Carefully add the butter (it will bubble up a lot), and stir until fully melted and combined.

3. Add cream:

1. • Slowly pour in the cream while stirring — it will bubble vigorously again.
   • Stir until smooth and fully combined.

4. Simmer briefly:

1. • Let it boil gently for 1–2 minutes, stirring constantly. It should thicken slightly.
   • Add a pinch of salt if desired.

5. Cool slightly before pouring:

1. • Let the caramel cool for 5–10 minutes, then pour it over your shortbread base.
   • Chill in the fridge until firm before topping with chocolate.

Great question! Millionaire’s shortbread and caramel slice are essentially the same treat — just known by different names depending on where you’re from. “Millionaire’s Shortbread” is common in the United Kingdom and Ireland while Caramel Slice is the common name for this treat in Australia and New Zealand.