Chocolate
Génoise, a cornerstone of classical European pastry, is a sponge cake named after the Italian city of Genoa. Its hallmark lies in its aerated structure achieved through vigorous egg whipping, yielding a delicate crumb that absorbs flavors gracefully.
This Chocolate Marble Cake leverages the génoise method to create a soft, marbled interior, finished with a luscious hazelnut-studded chocolate glaze.
What you will need:
| Ingredient | Measure |
| Eggs | 136g |
| Sugar (Caster) | 170g |
| Vanilla essence | 1 tsp |
| Salt | 2g |
| Heavy Cream | 100g |
| Flour (Low Gluten) | 160g |
| Baking Powder | 2g |
| Unsalted Butter (Melted) | 60g |
| Dark Chocolate (Melted) | 20g |
| Cocoa Powder | 15g |
Equipments:
- Digital Scale
- Flour sifter
- Stand mixer or electric hand whisk
- 2 large mixing bowls
- Rubber spatula
- 2 loaf mold (15–17 cm)
- Pastry brush or spray (for oiling)
- Fine-mesh sieve
- Small saucepan or microwave-safe bowl
- Wire cooling rack
- Offset or silicone spatula
Time:
Preparation time : 25 minutes
Baking time : 40–45 minutes
Cooling time : 15 – 20 minutes
Instructions:
Preparation
- Preheat the oven to 180°C
- Melt the butter and let it cool
- Coat the molds with butter and a thin layer of flour and refrigerate
Prepare the Base Batter
- In a large mixing bowl, combine eggs, sugar, vanilla extract, and a pinch of salt.
- Whip on high speed until pale and tripled in volume—about 5–7 minutes.
- Pour in liquid cream, whisk briefly on low speed to incorporate.
- Sift together flour and baking powder.
- Gently fold into the egg mixture in batches with a spatula. Do not deflate the batter.
- Stream in cooled melted butter, folding just until no streaks remain.
Génoise Sponge Technique
This recipe uses the génoise sponge technique, a foundational method in classical pâtisserie. Unlike butter-based cakes, génoise relies entirely on mechanically whipped eggs to incorporate air and create structure—no chemical leaveners are used traditionally, though a small amount of baking powder can assist stability in home baking.
Divide
- Divide the batter into two equal portions.
- To one portion, add melted dark chocolate and sifted cocoa powder. Fold until smooth.
- Transfer the vanilla and chocolate batters into separate piping bags.
Layering and Bake
- Pipe alternating layers in the center of the mold, overlapping slightly as you build vertically.
- Continue layering until all batter is used, forming a bullseye-like pattern for optimal marbling.
- Run a well-oiled spatula or skewer once through the center lengthwise to produce a clean marbled swirl without blending.
- Bake in a preheated 180°C oven for 40–45 minutes.
- Check doneness with a cake tester—it should come out clean.
- Let the cake cool in the mold for 10 minutes.
- Unmold, place on a wire rack, and allow to cool completely.
Variations
Mocha Marble: Add espresso powder to chocolate batter.
Citrus-Vanilla: Infuse vanilla batter with orange zest.
Double Chocolate: Use milk and dark chocolate batters.
Almond Glaze: Substitute hazelnuts with toasted almonds.
Serving Suggestions
Serve with crème anglaise or a quenelle of espresso whipped cream.
Garnish with caramel shards or gold leaf for a plated dessert presentation.
Nutrition Profile / 100g
| Nutrition | Amount (per 100g) |
|---|---|
| Energy | 386 kcal |
| Protein | 5.9 g |
| Fat | 20.8 g |
| • Saturated Fat | 12.2 g |
| Carbohydrates | 44.3 g |
| • Sugars | 25.4 g |
| Fiber | 1.4 g |
| Salt | 0.3 g |
Note: These values are approximate and can vary based on the specific brands and types of ingredients used, as well as portion sizes.
Tips for Best Results:
- Eggs should be room temperature for optimal volume.
- Do not overmix after adding flour—preserve aeration.
- Use a digital thermometer: internal cake temp should reach ~94°C when done.
- Roast hazelnuts at 160°C for 10 minutes and rub skins off for best flavor.
Troubleshooting Guide:
| Problem | Likely Cause | Solution |
|---|---|---|
| Cake is flat or dense | Underwhipped eggs or overfolded batter | Ensure full volume during whipping; fold gently |
| Batter blends too uniformly | Excessive swirling | Run spatula through batter only once |
| Glaze is too runny | Overheated chocolate or warm cake | Cool cake fully and let glaze rest briefly |
| Dry texture | Overbaking or low-fat cream | Use full-fat cream; check oven calibration |
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