Pear Chocolate Cake with Dark Chocolate Mousse

Cake gets cold, mousse firms up, pears get glossy. That’s basically it.

Why You’ll Love This French Chocolate Cake with Pears

Takes just over an hour start to finish — 40 minutes prep, 38 in the oven. The sponge is light. Airy. Not dense. Mousse layer happens on top, stays creamy even after hours in the fridge. Tastes like something from a French bakery. Costs way less. Best part? It actually gets better overnight. The flavors settle. Pear liqueur soaks in.

What You Need for a Chocolate Mousse Cake

Start with the sponge base. All-purpose flour — 70 grams, sifted. Unsweetened cocoa powder, about 28 milliliters. That’s roughly 1¾ tablespoons. Don’t use Dutch-process if you want the true cocoa taste — natural cocoa goes deeper.

Two eggs. Sugar — 100 grams, the granulated kind. This matters. One can of pears, 796 milliliters, half pears in light syrup. Drain them, keep the syrup. You need it.

Pear liqueur. Poire Williams is the real deal. Belle de Brillet works too. 25 milliliters. If you can’t find either, pear brandy does the job. Dark chocolate — 90 grams, 70% cocoa minimum. Chopped rough.

Heavy cream. The 35% fat kind. 315 milliliters total, but you’ll split it. 125 milliliters for the ganache, 190 milliliters for whipping. And one more bit — dark chocolate shavings at the end, 15 grams. Use a vegetable peeler. Creates those thin curls that actually look right.

How to Make the Chocolate Sponge Base

Oven at 175°C. Mid-level rack. Line an 8-inch springform pan with parchment — no butter needed. Parchment releases cleaner.

Flour and cocoa powder go together. Whisk it thoroughly. No lumps at all. Set it aside.

Eggs and sugar next. Bowl. High speed. Nine minutes. That’s not negotiable. You’re watching for the volume to triple — it’ll go pale and thick. When you lift the whisk, the batter should ribbon back onto itself. That ribbon means air. Air is what makes this sponge rise.

Sift the dry stuff over the egg mix in two batches. Fold gently. This is the moment most people mess up. Don’t overmix. Just fold until you can’t see streaks of dry anymore. Stop. The air bubbles you spent nine minutes building — they matter.

Pour into the pan. Even layer. Into the oven.

How to Get the Chocolate Sponge Crispy on Top, Tender Inside

33 to 38 minutes. A tester inserted near the center should come out mostly clean — maybe a few moist crumbs clinging. That’s the goal. Underbaked means soggy. Overbaked means dry sponge that doesn’t absorb the pear syrup properly.

The color tells you more than a timer. Look for a set top, maybe a slight dome. The edges should pull slightly from the pan.

Cool it completely. In the pan. On a rack. Don’t rush unmolding. It’s fragile while warm. This takes maybe 30 minutes, longer if your kitchen’s hot.

Pear Liqueur Chocolate Cake Assembly and Finishing

While the sponge cools, work on the assembly. Mix 60 milliliters of reserved pear syrup with the pear liqueur. Pour this over the cooled cake slowly, spooning it evenly. You want it absorbed, not puddled at the edges.

Arrange the pear halves in a circle. Overlap them like rose petals. The glossy side faces up. Don’t cram them together — each slice should get covered by mousse later.

Small saucepan. Medium heat. Chopped dark chocolate and 125 milliliters of heavy cream. Stir constantly until smooth and glossy. Don’t boil. If it gets lumpy, pull it off heat and keep stirring. Patience works. Cool it slightly, stirring every so often. You’re preventing a skin from forming.

Separate bowl — chilled, this matters. 190 milliliters of cream and a bit of sugar. Whip until soft peaks form. Not stiff peaks. Soft. That keeps the mousse light.

Fold the ganache into the whipped cream in two additions. Gentle folding. You’re keeping the air. Pour this mousse over the pears and cake. Smooth it or leave peaks. Both work. It’s a chocolate mousse cake — doesn’t need to look perfect.

Refrigerate. 3½ to 4½ hours minimum. Mousse firms up cold. Overnight is better if you have time. Freezer for 15 minutes max if you’re in a rush, but don’t push it — ice crystals ruin texture.

When it’s ready, run a knife around the edge of the springform. Release carefully. Chocolate shavings on top. Use that vegetable peeler for thin curls.

Pear Chocolate Cake with Dark Chocolate Mousse

By Emma

Prep:

40 min

Cook:

38 min

Total:

1h 18min

Servings:

10 servings

Ingredients

• 70 g (½ cup) all-purpose flour, sifted
• 28 ml (1 ¾ tbsp) unsweetened cocoa powder (exchange the 2 tbsp for natural cocoa for deeper flavor)
• 2 eggs
• 100 g (½ cup minus 1 tbsp) granulated sugar
• 1 can 796 ml (28 oz) of canned half pears in light syrup, drain pears and reserve syrup
• 25 ml (1 ⅔ tbsp) pear liqueur (Poire Williams or Belle de Brillet) - replace with pear brandy if unavailable
• 90 g (3 oz) 70% dark chocolate, chopped
• 315 ml (1 ¼ cup) heavy cream 35% fat, divided
• 12 ml (¾ tbsp) granulated sugar
• 15 g (½ oz) dark chocolate shavings (made with a vegetable peeler)

Method

1. Cake
2. 1 Place oven rack mid-level. Preheat oven to 175°C (347°F). Line 20 cm (8-inch) springform pan with parchment. Skip buttering; parchment helps easy release without greasy mess.
3. 2 Whisk flour and cocoa powder together thoroughly, no lumps. Set aside.
4. 3 In a medium bowl, beat eggs and sugar on high speed about 9 minutes. Look for when volume triples, thick and pale, that ribbon effect when scoop and drop mix back onto surface. Can’t rush this step; air in batter critical for sponge lift.
5. 4 Sift dry blend over egg mix in two additions. Fold gently with spatula or whisk, no overmixing. Just enough to blend dry with wet. The trick - keep those air bubbles intact. Dump into prepared pan evenly.
6. 5 Oven time: 33–38 minutes. Bake until tester inserted near center comes out mostly clean with a few moist crumbs. Underbaking creates soggy texture; overbaking dries out sponge. Visual cues matter more than exact minutes.
7. 6 Cool the sponge completely IN the pan on rack. No hurry to unmold, fragile while warm.
8. Garnish and Assembly
9. 7 Mix 60 ml (¼ cup) reserved pear syrup with the pear liqueur until combined. Pour this syrup over cooled cake evenly, spooning gently to avoid soaking the edges too much and breaking the crust.
10. 8 Arrange the drained pear halves in a circular rose pattern: overlap glossy sides for a visual petal effect. Don’t overcrowd; each slice should get covered by mousse.
11. 9 In a small saucepan on medium heat, warm chopped dark chocolate and 125 ml (½ cup) cream. Stir frequently until smooth and glossy; don’t let it boil. If lumpy, off heat and keep stirring until melted. Cool the chocolate ganache slightly, stirring intermittently to prevent skin.
12. 10 In a separate chilled bowl, whip remaining 190 ml (¾ cup plus 1 tbsp) cream with sugar until soft peaks form. Not stiff. Soft peaks ensure mousse lightness.
13. 11 Fold chocolate ganache gently into whipped cream in 2 additions, keeping air. Pour this mousse evenly over pears and cake. Smooth top or rustic peaks, both fit here.
14. 12 Refrigerate at least 3 ½ to 4 ½ hours for mousse to firm well. Overnight fine, but if rushed chill longer in freezer wrapped well—15 minutes max to avoid ice crystals.
15. 13 Run knife around cake edge before releasing springform. Slide carefully onto plate. Finish with fresh dark chocolate shavings scattered atop for crunch and visual contrast.
16. 14 Store covered in fridge. Best enjoyed within 2 days. Freezing mousse can dull texture.
17. 15
18. 16 Optional twist: swap half pears for poached quince slices – firmer fruit holds shape better under mousse. Liqueur swap with calvados adds warmth and depth.

Nutritional information

Calories

370

Protein

5g

Carbs

35g

Fat

24g

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Frequently Asked Questions About Chocolate Mousse Cake with Poached Pears

Can I make this without pear liqueur? Pear brandy works. Or just skip it — use more pear syrup instead. Won’t taste as sophisticated, but it’s still good.

How long does this actually keep? Two days in the fridge. Best on day one. After that the sponge absorbs more liquid — still tastes fine, just softer. Freezing dulls the mousse texture. Not worth it.

What if my sponge doesn’t rise? Probably underbaked or the eggs didn’t get whisked long enough. Nine minutes seems excessive until you do it and see the difference. Next time, beat them longer.

Can I use fresh pears instead of canned? Maybe. Canned half pears in syrup are already soft and the right shape. Fresh pears need poaching first — more work. If you go that route, poach them gently in sugar syrup until tender. Cool before arranging.

Why sift the cocoa powder? Lumps. Cocoa powder gets clumpy. Sifting means it distributes evenly through the sponge. Visible difference in texture.

Does the pear syrup step really matter? Yes. The sponge would be dry without it. The liqueur in the syrup adds flavor that just sitting there won’t give you. Pour it on while the sponge is still warm enough to absorb it.

What’s the difference between this and a regular chocolate cake? The sponge is lighter. The mousse layer keeps it moist for days. The pears and liqueur make it taste French. It’s actually more assembled than baked, which sounds fancy but isn’t hard.