Golden Toffee Crunch Cupcakes

Cupcakes:

• 
  2
  cups
  
  (424 g)
  granulated sugar
• 
  1-3/4
  cups
  
  (249 g)
  all-purpose flour
• 
  ¾
  cup
  
  (64 g)
  unsweetened cocoa powder
• 
  1 ½
  teaspoons
  
  
  baking powder
• 
  1 ½
  teaspoons
  
  
  baking soda
• 
  1
  teaspoon
  
  
  salt
• 
  2
  large
  
  
  eggs
• 
  1
  cup
  
  
  milk
• 
  ½
  cup
  
  
  vegetable oil
• 
  2
  teaspoons
  
  
  vanilla extract
• 
  1
  cup
  
  
  boiling water

Ganache and Toffee:

• 
  12
  ounces
  
  (340 g)
  semisweet chocolate, chopped
• 
  1 ½
  cups
  
  
  heavy cream
• 
  3
  tablespoons
  
  
  butter
• 
  2 packages
  (8-ounces each)
  
  (454 g)
  toffee bits

Frosting:

• 
  1 ½
  cups
  
  (318 g)
  granulated sugar
• 
  ¼
  cup
  
  (36 g)
  all-purpose flour
• 
  3
  tablespoons
  
  
  cornstarch
• 
  ¼
  teaspoon
  
  
  salt
• 
  1 ½
  cups
  
  
  milk
• 
  2
  teaspoons
  
  
  pure vanilla extract
• 
  1 ½
  cups
  
  (339 g)
  salted butter, (24 tablespoons) cut into 24 pieces and softened at room temperature
• 
  ⅓
  cup
  
  
  caramel sauce (see note)

• For the cupcakes, preheat your oven to 350°F (175°C). Line muffin tins with paper baking cups. In a large mixing bowl, thoroughly stir together the granulated sugar, all-purpose flour, unsweetened cocoa powder, baking powder, baking soda, and salt. These dry ingredients form the core of your chocolate cupcake batter. Next, add the wet ingredients: eggs, milk, vegetable oil, and vanilla extract. Using a handheld electric mixer or a stand mixer, beat the mixture on medium speed for precisely 2 minutes, ensuring everything is well combined and smooth. Carefully stir in the boiling water; this step helps create a wonderfully moist and tender crumb. Don’t be alarmed if the batter appears somewhat thin – this is normal for these rich chocolate cupcakes. Fill each prepared muffin cup approximately 2/3 full. Bake for 18-20 minutes, or until a toothpick inserted into the center of a cupcake comes out with moist crumbs, indicating they are perfectly cooked. This recipe generously yields about 30 cupcakes, so you may need to bake in batches if you have only one or two muffin tins. Once baked, remove the cupcakes from the muffin tin and allow them to cool completely on a wire rack before proceeding to the next steps. Cooling them fully is crucial for proper frosting and ganache application.
• Now, let’s prepare the luscious caramel frosting. In a medium bowl, combine the granulated sugar, all-purpose flour, cornstarch, and salt. Gradually whisk in the milk until the mixture is entirely smooth, with no lumps remaining. Place a fine-mesh strainer over a medium saucepan and pour the milk mixture through it into the saucepan. This straining step helps ensure a perfectly smooth frosting base. Cook the mixture over medium heat, continuously whisking, until it reaches a boil and thickens significantly, becoming challenging to whisk easily. This process can take anywhere from 5 to 10 minutes, depending on your stove’s heat. The mixture should bubble quite a bit towards the end (be cautious of splatters!) and achieve a custard-like consistency. The cornstarch is key here for that thick, stable base.
• Immediately transfer the thickened mixture to a clean bowl. This is a critical step: allow the mixture to cool completely to room temperature. This can take several hours, or you can refrigerate it overnight. If refrigerating, remember to pull it out well in advance to let it warm back up to room temperature. It is paramount that the mixture has no hint of warmth, and is not too cold either. If it’s even slightly warm, the frosting will not emulsify correctly, resulting in a runny or greasy texture. If it’s too cold, the butter won’t absorb properly. Patience here ensures a flawlessly creamy frosting.
• Once the frosting base has cooled to the perfect room temperature, beat it together with the pure vanilla extract on low speed for about 30 seconds until well combined. A stand mixer is highly recommended for the best results in achieving a light and fluffy consistency. Next, add the softened salted butter, one piece at a time, beating after each addition until fully incorporated. This process typically takes about 2 minutes. Increase the mixer speed to medium-high and beat the frosting for a full five minutes. During this time, the frosting will transform, becoming wonderfully light, fluffy, and smooth. Finally, gently fold in the caramel sauce. For optimal piping consistency, let the frosting sit at room temperature for about 1 hour to stiffen slightly.
• To create the rich chocolate ganache, place the finely chopped semisweet chocolate in a medium, heatproof bowl. In a small saucepan, heat the heavy cream until it reaches a bare simmer – you should see small bubbles around the edges, but avoid a rolling boil. Pour the hot cream directly over the chopped chocolate. Let the mixture sit, undisturbed, for 1-2 minutes. This allows the heat from the cream to melt the chocolate evenly. After waiting, gently whisk the mixture until it becomes completely smooth and gloriously glossy. Whisk in the butter until it is fully melted and integrated, ensuring a perfectly smooth and luxurious ganache. Transfer the bowl to the refrigerator to chill until it reaches a piping consistency. To ensure even cooling and prevent it from becoming too stiff, give the ganache a good stir every 10 minutes or so. Be careful not to let it harden too much; if it becomes too firm to pipe, simply let it sit at room temperature for a short while until it softens again.
• Now it’s time to assemble your beautiful cupcakes! Fill a piping bag with the prepared ganache. Using a large round circle tip (a Wilton 1A works wonderfully for this), pipe a neat ring of ganache around the perimeter of each cupcake top, leaving an open circle in the center. The goal is to create a border, not to fill the entire top with ganache just yet. Pour the toffee bits into a shallow bowl. Gently press the ganache-edged cupcakes into the toffee bits, allowing the toffee to adhere to the ganache border. This creates a stunning visual effect and adds an irresistible crunch.
• Next, fill another pastry bag, fitted with your preferred decorative tip (such as a Wilton 1M for beautiful swirls), with the caramel frosting. Pipe a generous swirl of frosting into the empty space inside the ganache and toffee ring on each cupcake. If desired, sprinkle a few additional toffee bits on top of the frosting for extra garnish and crunch. For best serving, refrigerate the finished cupcakes to allow the ganache and frosting to set. Then, remove them from the refrigerator about an hour before serving to allow the frosting to soften slightly to a cool room temperature, enhancing its creamy texture and flavor.

Frosting:
Plan ahead for the frosting preparation, as the cooked base requires several hours to cool completely to room temperature. This cooling process is crucial for the frosting’s texture. If you prefer not to use the detailed “magical frosting” recipe outlined here, feel free to substitute your favorite buttercream recipe, but remember to fold in some caramel sauce to maintain that signature toffee crunch cupcake flavor!