Ingredients
Painting Mass
- 40 grams (1.4 ounces) egg whites
- 40 grams (1.4 ounces) butter
- 40 grams (1.4 ounces) powdered sugar
- 45 grams (1.6 ounces) flour
Sponge Biscuit
- 55 grams (1.9 ounces) wheat flour
- 5 grams (0.2 ounces) cocoa
- 0.5 teaspoon baking powder
- vanillin to taste
- 3 large eggs
- 45 grams (1.6 ounces) sugar
- 50 milliliters (1.7 ounces) milk
- 35 milliliters (1.2 ounces) sunflower oil (flavorless)
Equipment
- Mixing Bowls
Ensure you have various sizes for different ingredients. Stainless steel or glass bowls work best for temperature control.
- Whisk and Blender
A whisk for combining dry ingredients and a blender to achieve a smooth, airy batter are essential.
- Pastry Bags
Helpful for drawing intricate patterns, ideally with multiple sizes for precision.
- Parchment Paper
Cut to fit your baking sheet, it prevents sticking and makes transferring the cake a breeze.
- Baking Sheet
Ensure it's sturdy and flat for even baking; choose one that comfortably fits a 20x30 cm (7.9x12 inch) roll.
- Silicone Spatula
Perfect for gently folding and spreading the batter without deflating it.
Instructions
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Servings
Variations
Faq
- How do I ensure my sponge cake doesn’t dry out?
Be sure to not overbake it; start checking for doneness a few minutes early. The surface should spring back lightly when pressed.
- Can I use regular sugar instead of powdered sugar?
Powdered sugar dissolves better and gives a smoother texture to the painting mass. Regular sugar might result in a gritty texture.
- How can I achieve an even pattern with the painting mass?
Practice on parchment paper first, or place a printed design under the parchment to trace over it.
- What’s the best way to freeze the painted design?
Lay it flat in your freezer for at least 40 minutes until it’s completely solid; this ensures it doesn't smudge when the batter is poured over.
- Can I make the sponge cake ahead of time?
Yes, you can make the sponge a day in advance, but roll it up gently once cool and store it in an airtight container to maintain moisture.
- How do I prevent the roll from cracking?
Roll the cake while it’s still slightly warm. This helps it form shape and prevents cracks.