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Billionaire shortbread bars with salted coffee chocolate

Anytime company comes over, I always like to finish with something sweet. And this billionaire shortbread is the perfect treat. It's three layers of the ultimate decadence.

Four fingers of a rich slice sit on a white platter. The bars have three layers - a shortbread base, a gooey-looking caramel middle and a top later of chocolate, which is dusted with salt flakes.

Billionaire shortbread bars with salted coffee chocolate. Credit: Comfort Food With Spencer Watts

  • serves

    6-8

  • prep

    15 minutes

  • cook

    25 minutes

  • difficulty

    Mid

serves

6-8

people

preparation

15

minutes

cooking

25

minutes

difficulty

Mid

level

Ingredients

Shortbread
  • 225 g butter, at room temperature
  • ⅓ cup sugar
  • ⅓ cup brown sugar
  • 1 egg yolk
  • ½ tsp vanilla
  • ½ tsp salt
  • 2¼ cup flour

Caramel
  • 1 can dulce de leche (see Note)
  • 1 cup brown sugar
  • ⅓ cup dark corn syrup
  • 1 tsp vanilla
  • 1½ tsp ground cardamon
  • ¼ tsp salt
  • ¾ cup butter (cubed)

Chocolate ganache
  • 1 cup milk chocolate pieces
  • 1 cup dark chocolate pieces
  • ½ cup thickened (heavy) cream
  • ¼ tsp instant coffee
  • ¼ tsp cinnamon
  • Pinch cayenne
  • Flaky salt, for top

Chilling time: about 7 hours.

Instructions

  1. For shortbread: Pre-heat the oven to 180°C (350°F). Line a 23 cm (9 inch) square baking pan with parchment (baking) paper.
  2. In a stand mixer with the paddle attachment, cream the butter and the sugar. Add in the egg yolk, vanilla and salt and mix to combine. Scrape down the sides of the bowl and mix once more, then on low speed add in the flour gradually. Scrape sides again and mix once more. Using your hands gently fill the bottom of the baking pan, pushing the shortbread dough into the corners and filling the pan with a level layer of mixture. Place in the refrigerator and allow to cool for 20 minutes, then bake in oven for 10 minutes (the sides will just start to turn golden brown). Reserve for next layer.
  3. For caramel: In a heavy-bottomed saucepan on medium heat, add the brown sugar, corn syrup and dulce de leche caramel. Whisk mixture occasionally until the sugar has melted. Add in the vanilla, cardamon, salt and the butter. Whisk mixture until the butter has fully melted. Place a candy (confectionery) thermometer in the mixture and turn down the heat slightly. Cook the mixture until a softball stage is achieved, 112-115°C (235-240°F).
  4. Remove thermometer and pour mixture over the layer of cooked shortbread. Place in the refrigerator and allow to cool (about 30 minutes), then reserve for final layer.
  5. For chocolate ganache: Assemble a double boiler by adding 1 cup of water to a heavy-bottomed saucepan. Place a heat proof bowl on top and add all ingredients except salt to the bowl. Stir occasionally with a spatula, scraping down the sides of the bowl, until chocolate is melted and mixture is smooth and shiny. Carefully remove the bowl from the double boiler and allow to cool slightly (about 5 minutes). Carefully pour chocolate ganache over the chilled caramel layer.
  6. Sprinkle with flaky salt and allow to let the chocolate layer set in the refrigerator (6 hours or overnight for best results).
  7. To serve: Using the parchment (baking paper), lift out the billionaire bar and place on a cutting board. Trim, then cut into even portions.
Note
Spencer uses purchased dulce de leche, which comes in 300ml cans. You can using a can of condensed milk.


Cook's Notes

Oven temperatures are for conventional; if using fan-forced (convection), reduce the temperature by 20˚C. | We use Australian tablespoons and cups: 1 teaspoon equals 5 ml; 1 tablespoon equals 20 ml; 1 cup equals 250 ml. | All herbs are fresh (unless specified) and cups are lightly packed. | All vegetables are medium size and peeled, unless specified. | All eggs are 55-60 g, unless specified.


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Published 15 September 2023 4:09pm
By Spencer Watts
Source: SBS



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