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4.85 from 13 votes

Millionaire's Bars

Millionaire's Shortbread is a sweet, layered dessert made with shortbread, a caramel filling, and a semi-sweet chocolate topping.
Prep Time30 mins
Cook Time40 mins
Chill2 hrs
Total Time3 hrs 10 mins
Course: Dessert
Cuisine: American
Keyword: Millionaires Bars
Servings: 16
Calories: 514kcal
Author: Amanda Rettke--iambaker.net

Ingredients

Shortbread

  • 1 cup (2 sticks or 227g) unsalted Challenge butter, cold
  • 1 ¾ cup (219g) all-purpose flour
  • ¼ cup (32g) cornstarch
  • cup (150g) superfine sugar, or caster sugar
  • ¼ teaspoon kosher salt

Caramel Filling

  • 1 cup (2 sticks or 227g) unsalted Challenge butter
  • 1 can (14 ounces) sweetened condensed milk
  • ½ cup (119g) heavy cream
  • ½ cup (170.5g) light corn syrup
  • 1 cup (200g) brown sugar, packed
  • ½ teaspoon kosher salt
  • ½ teaspoon vanilla

Chocolate Topping

  • 8 ounces semisweet chocolate baking bar, broken into pieces

Instructions

Shortbread

  • Preheat the oven to 350°F. Line an 8x8-inch baking dish with parchment paper. Set aside.
  • In the bowl of a stand mixer with a paddle attachment, mix the flour, cornstarch, sugar, and salt at low speed until combined (about 5 seconds).
  • Cut the cold Challenge butter into ½-inch cubes. Place the butter cubes in a small bowl and toss with ¼ cup of the flour mixture.
  • Add the floured butter (with any extra flour) to the bowl of the stand mixer. Mix on low speed until the dough is light yellow in color and small crumbs (about 4 minutes).
  • Remove bowl from stand mixer and use your hands to toss the mixture and rub any remaining butter bits into the flour mixture.
  • Press the shortbread mixture firmly and evenly into the lined pan, smoothing it with the back of a spoon. Using a fork, pierce dough at 1-inch intervals.
  • Bake 35-40 minutes, or until the top and edges are lightly golden brown.
  • Remove the shortbread from the oven. While the crust is still hot, press it down with a spatula and set it aside to cool while you prepare the caramel filling.

Caramel Filling

  • In a large saucepan over medium heat, melt the Challenge butter.
  • Add sweetened condensed milk, heavy cream, corn syrup, brown sugar, salt, and vanilla. Stir until combined.
  • Continue cooking until the mixture reaches 236°F on a candy thermometer, stirring constantly (about 15-18 minutes).
  • Pour over the cooled shortbread crust and spread to an even thickness. (The mixture will be very hot). Let cool completely in the refrigerator, about 1½ hours.

Chocolate Topping

  • Add the chocolate pieces to a microwave-safe bowl. Heat the chocolate bits up in 30-second intervals, stirring in between each time, until the chocolate is completely melted with no lumps.
  • Spread the melted chocolate over the caramel. Set aside until chocolate is set (about 10 minutes).
  • Cut into strips or squares and serve.

Nutrition

Calories: 514kcal