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How to make Millionaire Shortbread


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  • Author: Olivia
  • Total Time: 3 hours 15 minutes (including chilling)
  • Yield: 16 squares
  • Diet: Vegetarian

Description

Millionaire Shortbread is a decadent dessert featuring three rich layers: a tender, buttery shortbread base, a gooey caramel center, and a smooth chocolate topping finished with flaky sea salt. Perfect for special occasions or indulgent everyday treats.


Ingredients

  • For the shortbread layer:
  • 2 cups unsalted butter
  • ⅔ cup granulated sugar
  • 2 extra large egg yolks
  • 2½ teaspoons vanilla extract
  • 2 cups all-purpose flour
  • ¼ + ½ teaspoon salt
  • For the caramel layer:
  • 14 oz sweetened condensed milk
  • 1 cup light brown sugar
  • ⅓ cup plus 1 tablespoon light corn syrup
  • For the chocolate topping:
  • 2 cups semi-sweet chocolate chips
  • ⅔ cup heavy cream
  • 1½ teaspoons flaky sea salt

Instructions

  1. Preheat oven to 350°F (175°C) and line a square baking pan with parchment paper.
  2. Cream butter and sugar until light and fluffy. Mix in egg yolks and vanilla extract.
  3. Gradually add flour and salt; mix until a soft dough forms.
  4. Press dough into the prepared pan and bake until lightly golden, about 20–25 minutes. Let cool.
  5. For caramel, combine sweetened condensed milk, brown sugar, and corn syrup in a saucepan.
  6. Cook over medium heat, stirring constantly, until thick and deep golden, about 10–15 minutes.
  7. Pour caramel over cooled shortbread and spread evenly. Let it set slightly.
  8. Heat cream until just simmering and pour over chocolate chips. Let sit for 1 minute, then stir until smooth.
  9. Spread chocolate over caramel layer and sprinkle with flaky sea salt.
  10. Refrigerate for 2–3 hours or until fully set. Slice into squares before serving.

Notes

  • Use a warm, sharp knife to get clean slices.
  • Make a day ahead for even better flavor and texture.
  • Milk chocolate can be substituted for a sweeter topping.
  • Store in fridge, but allow to sit at room temperature for a few minutes before serving.
  • Can be frozen for up to 2 months when wrapped individually.
  • Prep Time: 25 minutes
  • Cook Time: 25 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: British

Nutrition

  • Serving Size: 1 square
  • Calories: 360
  • Sugar: 28g
  • Sodium: 115mg
  • Fat: 24g
  • Saturated Fat: 15g
  • Unsaturated Fat: 8g
  • Trans Fat: 0g
  • Carbohydrates: 35g
  • Fiber: 1g
  • Protein: 3g
  • Cholesterol: 60mg