Step 1

Prepare the Base: Start by lining an 8x8-inch square pan with parchment paper, leaving some overhang for easy removal later.

Step 2

In a food processor, crush the shortbread cookies until fine crumbs form. You can also do this by placing them in a zip-top bag and crushing with a rolling pin.

Step 3

In a bowl, mix the crumbs with melted butter and sugar. Stir until everything is well combined and the mixture sticks together.

Step 4

Press this mixture into the prepared pan, packing it down firmly to form an even layer. Chill the base in the fridge while you make the caramel layer.

Step 5

Make the Caramel Layer: In a medium saucepan, melt the butter over medium heat.

Step 6

Add the brown sugar and condensed milk to the pan, stirring constantly. Bring the mixture to a low simmer, and cook for about 5 minutes, stirring occasionally. The caramel should thicken slightly.

Step 7

Remove the saucepan from the heat and stir in the vanilla extract and a pinch of salt. Allow the caramel to cool for 5 minutes.

Step 8

Pour the caramel over the chilled base, spreading it into an even layer. Return the pan to the fridge and chill for about 2 hours or until the caramel has set.

Step 9

Prepare the Chocolate Ganache: In a small saucepan, heat the heavy cream over medium heat until it just begins to simmer (but don't let it boil).

Step 10

Place the chopped semi-sweet chocolate into a heatproof bowl. Pour the hot cream over the chocolate and let it sit for about 1-2 minutes to soften.

Step 11

After the chocolate has softened, whisk gently until the chocolate is fully melted, and the mixture is smooth and glossy. Let the ganache cool for a few minutes before pouring it over the caramel layer. This will prevent it from melting the caramel and will give it a firmer set. Optional: Add a sprinkle of flaky sea salt on top before it sets.

Step 12

Cut & Serve: Once everything is set and chilled, lift the shortbread from the pan using the parchment paper overhang. Use a sharp knife to cut into squares or bars, wiping the knife clean between cuts for neat edges. Enjoy your No-Bake Millionaire’s Shortbread!