Ingredients
For the Biscuit



For the Soaking Mixture
For Topping



Instructions
Step 1
Start by whisking together the eggs, sugar, and a pinch of salt until the mixture is light and fluffy.
In a separate bowl, mix the dry ingredients which include flour and baking powder. Gradually fold this mixture into the egg mixture, taking care to combine gently.
Next, mix the vegetable oil with the boiling water and add it to the main batter, stirring until smooth. Preheat the oven to 180°C (350°F) and bake for about 30 minutes until golden.
Step 2
In a saucepan, combine the cream, milk, and boiled condensed milk. Heat gently while stirring until everything is well combined and slightly thickened.
Step 3
Once the biscuit is baked, remove it from the oven and use a fork to make holes all over the top. While the biscuit is still in the pan, pour the hot caramel mixture over it, allowing it to soak in.
Cover and refrigerate overnight for the best results.
Step 4
After chilling, carefully remove the cake from the pan and place it on a serving plate.
Spread boiled condensed milk over the top and sprinkle with chopped walnuts for added flavor and texture.
Servings
Equipment
Choose a high-quality, non-stick baking pan to ensure even baking and easy removal of the cake. Line the bottom with parchment paper for extra protection!
A large mixing bowl is essential for combining the ingredients. Using a glass or stainless steel bowl can help you see the mixture's texture as you beat the eggs and sugar.
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
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This will save you time and energy when whisking the eggs and sugar to achieve that fluffy consistency. If you don't have one, a good old whisk works too!

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
Use this to poke holes in the sponge for soaking in the caramel mixture. Make sure the holes are evenly spaced for optimal flavor absorption!
A rubber spatula is great for folding dry and wet ingredients together without deflating the batter.


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Variations
Swap out regular flour for a high-quality gluten-free flour blend to make this cake gluten-free. Make sure to check the other ingredients for gluten content! 🍞
Vegan Variation:To create a vegan version, replace the eggs with flaxseed meal (1 tablespoon of ground flaxseed mixed with 3 tablespoons of water per egg). Use plant-based milk and whipped coconut cream as a substitute for dairy products. 🌱
Faq
- What can I do if my sponge cake is too dense?
If your cake turns out dense, it might be due to overmixing the batter. Be sure to gently fold the dry ingredients into the wet ingredients just until combined.
- How do I know when the cake is done baking?
Your cake is done when a toothpick inserted in the center comes out clean, or with a few crumbs attached. It should spring back when gently pressed!
- Can I store this cake? If so, how?
Absolutely! Keep the cake in an airtight container at room temperature for up to 3 days. For longer storage, refrigerate it for up to a week.
- Can I make the caramel mixture in advance?
Yes! You can prepare the caramel mixture a day ahead and store it in the fridge. Just warm it up slightly before pouring it over the cake.
- What can I use instead of walnuts for toppings?
You can use any kind of nuts, such as pecans, almonds, or even chocolate chips for a different flavor profile. Get creative!
- Is it possible to freeze the cake?
Yes! You can freeze the unassembled cake for up to 3 months. Just make sure to wrap it tightly in plastic wrap and foil. Defrost it in the fridge before adding the toppings!