Toffee Crunch Cake
Indulge in the ultimate Toffee Crunch Cake, a dessert that perfectly marries moist, tender cake with the irresistible buttery sweetness of toffee. Each slice offers a delightful texture contrast, featuring a soft crumb studded with crunchy toffee bits, all enveloped in a luscious caramel buttercream. This showstopping cake is guaranteed to be a crowd-pleaser for any special occasion or simply to satisfy a serious sweet tooth.
Prep Time
30-40 minutes
Cook Time
25-35 minutes
Total Time
Approximately 1 hour 15 minutes (plus cooling time)
Servings
12-16 servings
Keywords
toffee crunch cake recipehomemade toffee cakecaramel buttercreamdessert recipelayered cakebutterscotch cakespecial occasion cakeeasy cake recipeclassic cakerich dessert
Why This Recipe Delivers
- Features an incredibly moist, tender cake infused with buttery toffee flavor.
- Boasts a delightful textural contrast from crunchy toffee bits in every bite.
- Topped with a luxurious, silky caramel buttercream that's truly irresistible.
- Perfect for celebrations, holidays, or a showstopping weekend treat.
- Offers a unique blend of sweet and crunchy, making it a memorable dessert.
Ingredients
- Cake
- 310 g (2 1/2 cups) all-purpose flour
- 2 tsp baking powder
- 1/2 tsp baking soda
- 1 tsp fine salt
- 225 g (1 cup) unsalted butter, softened
- 200 g (1 cup) brown sugar (light or dark)
- 100 g (1/2 cup) granulated sugar
- 4 large eggs, room temperature
- 2 tsp vanilla extract
- 240 ml (1 cup) buttermilk (or milk + 1 tbsp vinegar, rested 10 min)
- 120 ml (1/2 cup) hot coffee or hot water (optional but recommended)
- 150-190 g (1 to 1 1/4 cups) toffee bits or chopped toffee bars
- Caramel Buttercream
- 340 g (1 1/2 cups) unsalted butter, softened
- 540-600 g (4 1/2 to 5 cups) powdered sugar, sifted
- 120 ml (1/2 cup) thick caramel sauce (store-bought or homemade)
- 1 tsp vanilla extract
- 30-60 ml (2-4 tbsp) milk or cream (as needed)
- Pinch of salt
- Filling + topping
- 80-120 ml (1/3 to 1/2 cup) caramel sauce for drizzling between layers
- 150 g (1 cup) toffee bits for topping
- 60 g (1/2 cup) chopped toasted nuts (optional)
- Melted chocolate for drizzle (optional)
Instructions
- Preheat your oven to 175°C (350°F) and prepare your cake pans. Grease and line the bottoms of two 20 cm (8-inch) or 23 cm (9-inch) cake pans with parchment paper circles. Lightly flour the sides of the pans, or use a baking spray designed for cakes, ensuring even release of the delicate cake layers.
- In a medium bowl, thoroughly whisk together the dry ingredients: the all-purpose flour, baking powder, baking soda, and fine salt. This ensures all leavening agents and seasonings are evenly distributed throughout the dry mixture, which is crucial for a consistent cake texture. Set this bowl aside.
- In a large mixing bowl, beat the softened unsalted butter with an electric mixer for 1 to 2 minutes until it becomes smooth and creamy. Add the brown sugar and granulated sugar, then continue to beat for 3 to 4 minutes on medium-high speed until the mixture is visibly lightened in color and fluffy in texture. This creaming process incorporates air, which contributes significantly to the cake's soft, bakery-style crumb.
- Incorporate the eggs one at a time, beating well after each addition until fully combined before adding the next. This allows each egg to emulsify properly into the butter-sugar mixture, preventing a curdled appearance. Stir in the vanilla extract, then scrape down the sides and bottom of the bowl with a spatula to ensure all ingredients are evenly blended.
- Add the dry ingredients and buttermilk to the wet mixture in alternating additions, beginning and ending with the dry ingredients. Start by adding one-third of the dry mixture, mix on low speed until just combined. Follow with half of the buttermilk, mixing until just incorporated. Repeat with another third of the dry ingredients, the remaining buttermilk, and finally the last third of the dry ingredients. Mix only until the flour streaks disappear; overmixing can develop gluten and lead to a tough cake.
- For a deeper, richer flavor and a slightly thinner batter, slowly pour in the hot coffee or hot water while mixing on the lowest speed. This optional step enhances the chocolate notes (even without cocoa powder) and improves the cake's moisture.
- To prevent the toffee bits from sinking to the bottom of the cake layers during baking, toss them gently with about 5 g (1 tsp) of all-purpose flour before adding them to the batter. Then, gently fold the floured toffee bits into the cake batter using a spatula until evenly distributed.
- Divide the prepared cake batter evenly between your two greased and floured cake pans. Place the pans into the preheated oven and bake for 25 to 35 minutes. The cake is done when a wooden toothpick or cake tester inserted into the center comes out with a few moist crumbs attached, but no wet batter. Avoid overbaking. Let the cakes cool in their pans for 10 minutes before carefully inverting them onto a wire rack to cool completely. Ensure they are fully cooled before frosting to prevent the buttercream from melting.
Tools You’ll Need
- Two 20 cm (8-inch) or 23 cm (9-inch) round cake pans
- Parchment paper
- Large mixing bowls
- Electric mixer (stand mixer or hand mixer)
- Whisk
- Spatula
- Wire cooling rack
- Measuring cups and spoons (or kitchen scale)
- Sifter (for powdered sugar)
Essential Success Tips
- Ensure all cold ingredients like butter and eggs are at room temperature. This allows them to cream together properly, creating a smooth emulsion and a light, airy cake texture.
- Do not overmix the batter once the flour is added. Mixing too much develops gluten, leading to a tough, dense cake. Mix only until just combined.
- Toss toffee bits with a little flour before adding to the batter to prevent them from sinking to the bottom of the cake layers during baking.
- Allow the cakes to cool completely on a wire rack before frosting. Attempting to frost warm cakes will cause the buttercream to melt and slide off.
- When making the caramel buttercream, ensure your butter is well softened but not melted. If the buttercream seems too stiff, add milk or cream one tablespoon at a time; if too loose, add more sifted powdered sugar.
Professional Cooking Secrets
- For an exceptionally moist crumb, slightly underbake the cake. Remove it from the oven just when a toothpick comes out with moist crumbs, rather than completely clean. The residual heat will continue to cook it slightly, resulting in a supremely tender texture.
- To intensify the toffee flavor, lightly toast a portion of your toffee bits in a dry pan for a minute or two before adding them to the batter. This slight caramelization deepens their flavor profile.
- If you want to achieve perfectly level cake layers without trimming, you can use baking strips around your cake pans. These insulated strips help the cakes bake more evenly, preventing doming in the center.
Notes
- Storage: This Toffee Crunch Cake can be stored at room temperature, covered, for up to 2 days, or refrigerated for up to 5 days. Bring to room temperature before serving for the best flavor and texture.
- Freezing: Unfrosted cake layers can be wrapped tightly in plastic wrap and then foil, and frozen for up to 2 months. Thaw in the refrigerator overnight before frosting.
- Variations: Experiment with different types of toffee or even add a sprinkle of sea salt to the buttercream for a salted caramel effect.
- Gluten-Free Option: Substitute all-purpose flour with a 1:1 gluten-free baking blend that contains xanthan gum for a delicious gluten-free version.
Frequently Asked Questions
Can I use homemade caramel sauce for the buttercream and filling?
Absolutely! Homemade caramel sauce will elevate the flavor even further. Just ensure it's cooled to room temperature and is thick enough for the buttercream (not too runny).
My buttercream is too sweet. How can I fix it?
If your buttercream is overly sweet, you can add an extra pinch of fine salt, or a tiny splash of lemon juice or cream of tartar to balance the sweetness. A little extra vanilla extract can also help.
Why did my cake layers dome in the middle?
Cake layers often dome due to the outside baking faster than the inside. To minimize this, ensure your oven temperature is accurate (an oven thermometer helps!), and consider using baking strips around your cake pans, which insulate the edges and promote more even baking.
Nutrition Facts (Per Serving)
Approximate per serving (1/16th of cake): Calories: 580, Protein: 6g, Fat: 35g, Saturated Fat: 22g, Carbohydrates: 65g, Sugar: 50g, Sodium: 280mg.
Allergy Information
Contains dairy, eggs, and wheat. May contain nuts depending on optional toppings. For a dairy-free version, use dairy-free butter, buttermilk, and milk substitutes. For a gluten-free option, use a 1:1 gluten-free flour blend.
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