Tiramisu Blondies Recipe

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  • Prep Time

    10 mins

  • Cook Time

    10 mins

  • Additional Time

    30 mins

  • Total Time

    1 hr 10 mins

  • Servings

    24 bars

  • Calories

    329 kcal

  • Course

    Dessert

  • Cuisine

    American

Tiramisu Blondies Recipe

Tiramisu Blondies are chewy and chocolatey and topped with a velvety mascarpone frosting.

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Ingredients

Servings

For the Espresso Blondies:

  • cups all-purpose flour (390g)
  • 2 tablespoons instant espresso powder
  • 4 teaspoons cornstarch
  • 1 teaspoon baking soda
  • 1 teaspoon salt
  • cups packed light brown sugar (275g)
  • ¾ cup granulated sugar (150g)
  • 1 cup unsalted butter melted and cooled slightly (226g)
  • 2 large eggs room temperature
  • 1 tablespoon spiced rum
  • 1 teaspoon vanilla extract
  • 1 cup dark chocolate chips (160g)

For the Mascarpone Frosting:

  • ¾ cup mascarpone cheese (170g)
  • ¼ cup unsalted butter softened (56g)
  • ¼ teaspoon salt
  • cups confectioners’ sugar (180g)
  • 1 tablespoon spiced rum
  • ½ teaspoon vanilla extract
  • cocoa powder for sprinkling
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Instructions

For the Blondies:

  1. Preheat the oven to 350°F. Butter or spray a 9×13-inch baking pan with baking spray, then line it with parchment paper.
  2. In a medium bowl, whisk together the flour, espresso powder, cornstarch, baking soda, and salt.
  3. In a large mixing bowl, combine the brown sugar, granulated sugar, melted butter, eggs, spiced rum, and vanilla. Whisk together until the mixture is thick and well combined.
  4. Add the flour mixture to the butter mixture and stir with a silicone spatula until almost combined. Add the chocolate chips and stir until they are well distributed.
  5. Transfer the dough to the prepared baking pan and spread it into an even layer.
  6. Bake for 30 to 32 minutes or until the edges are set and golden brown and a toothpick inserted into the center comes out with a few moist crumbs. Let the cookie bars cool completely in the pan.

For the Mascarpone Frosting:

  1. Meanwhile, in the bowl of a stand mixer fitted with a paddle attachment (or a large bowl, using a handheld mixer), cream the mascarpone, butter and salt together on medium speed for about 1 minute or until creamy.
  2. Add the spiced rum, and vanilla and sift in the confectioners’ sugar. Beat on low speed for about 30 seconds, just until combined.
  3. Increase the speed to medium and beat for about 2 to 3 minutes, until the frosting is light and fluffy.
  4. Spread the frosting in a thin, even layer over top of the cooled blondies. Refrigerate for at least 30 minutes (up to 2 days) to help the frosting set.
  5. One hour before serving, dust the blondies all over with cocoa powder. Slice and serve.

Notes

  • Weigh the flour. The best way to measure flour is with a kitchen scale. If you don’t have one, fluff the flour in its container, spoon it into your measuring cup, and use a knife to level off the top.
  • Use room temperature eggs as they are easier to incorporate. Set the eggs out on the counter for 30 minutes to an hour before you start working on this recipe.
  • Don’t over-mix the batter. This will over-develop the gluten in the flour, leading to tough tiramisu blondies.
  • Use a metal pan instead of glass. Since glass heats up differently to metal, you may end up with overcooked edges and an undercooked middle, or you won’t achieve a golden edge on the coffee-blondie base.
  • Line the baking dish with parchment paper. Not only does this prevent sticking, but leaving a parchment paper overhang will make it really easy to remove the unfrosted blondies from the pan.
  • Let the dessert bars cool completely before frosting. If they’re still warm, the frosting will melt and won’t keep its fluffy, whipped consistency.

Nutrition Information

Show Details
Calories 329kcal (16%) Carbohydrates 43g (14%) Protein 4g (8%) Fat 16g (25%) Saturated Fat 10g (50%) Polyunsaturated Fat 1g Monounsaturated Fat 3g Trans Fat 0.4g Cholesterol 48mg (16%) Sodium 190mg (8%) Potassium 119mg (3%) Fiber 1g (4%) Sugar 27g (54%) Vitamin A 417IU (8%) Vitamin C 0.04mg (0%) Calcium 52mg (5%) Iron 1mg (6%)

Nutrition Facts

Serving: 24bars

Amount Per Serving

Calories 329 kcal

% Daily Value*

Calories 329kcal 16%
Carbohydrates 43g 14%
Protein 4g 8%
Fat 16g 25%
Saturated Fat 10g 50%
Polyunsaturated Fat 1g 6%
Monounsaturated Fat 3g 15%
Trans Fat 0.4g 20%
Cholesterol 48mg 16%
Sodium 190mg 8%
Potassium 119mg 3%
Fiber 1g 4%
Sugar 27g 54%
Vitamin A 417IU 8%
Vitamin C 0.04mg 0%
Calcium 52mg 5%
Iron 1mg 6%

* Percent Daily Values are based on a 2,000 calorie diet.

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