Peanut Butter Caramel Mousse Recipe

Sprinkle gelatin over water and walk away for ten minutes. While that blooms, grab a bowl — you’re making a peanut butter caramel mousse that tastes like someone’s been working on it all day when really you’ve just got 50 minutes invested, maybe less if you move fast.

Why You’ll Love This Peanut Butter Mousse Dessert

Tastes expensive. Isn’t. Smooth, creamy peanut butter mousse with chocolate that cracks when you bite it — the texture is doing actual work here. Takes 35 minutes to prep. Then the fridge does everything else while you’re not thinking about it. The caramel hits different when there’s whipped cream peanut butter mousse underneath. Like two desserts meeting each other. Sits in the fridge fine for a day or two. Gets better, honestly.

What You Need for Chocolate Peanut Butter Mousse

Gelatin powder — just a teaspoon and a quarter, bloomed in cold water first. Skip this and it won’t set right.

Sugar and three egg yolks. Whisk them hard for a minute or two until it goes pale and thick. The work matters here.

Whole milk. Pour it in slowly while you’re stirring. Not fast.

Creamy peanut butter — 90 milliliters. The smooth kind. Crunchy breaks the texture in ways you don’t want.

Whipping cream. Thirty-five percent fat, 270 milliliters total. Get the heavy stuff. Light cream won’t whip the same way.

For the crunchy topping: dark chocolate (65% cocoa, 90 grams), more peanut butter (40 milliliters), butter (20 milliliters), maple syrup (20 milliliters). Cornflakes crushed by hand — 50 grams, just lightly, so they still have crunch. Roasted salted peanuts, 25 grams. Caramel sauce on the side.

How to Make Peanut Butter Caramel Mousse

Bloom that gelatin first — sprinkle it over cold water and leave it for 10 minutes. It’ll go spongy. Don’t rush it.

Whisk sugar and yolks in a bowl for about two minutes. Really go at it. You want thick, pale, ribbons dropping back into the bowl when you lift the whisk. This is where you build air into the custard.

Add milk while you’re stirring — not all at once. Keep moving. The mixture goes smooth once it’s all in.

Set a pot over medium-low heat. Pour the milk mixture in and stir constantly with a wooden spoon. Scrape the sides. Scrape the bottom. This takes about seven minutes — you’re looking for it to thicken enough that it coats the back of the spoon. When you draw your finger across the spoon, it should leave a line. That’s it. Pull it off heat immediately. It keeps cooking a little after you stop heating it.

Take that bloomed gelatin and stir it into the hot custard fast, while the heat’s still in there. Then add the peanut butter. Whisk until everything dissolves. No lumps. Uniform color. This happens quick — maybe 30 seconds of actual whisking.

How to Get Dark Chocolate Peanut Butter Mousse Creamy and Set

Pour the peanut butter custard into a large bowl. Press plastic wrap right onto the surface — directly on it, not hovering above. This keeps a skin from forming. Let it cool to room temperature. Takes about 25 minutes. Don’t rush. Don’t put it in the fridge yet. The gelatin needs room to set slowly.

While that’s cooling, whip your cream. Soft peaks but still pliable — so it’s fluffy but you can still fold it without it turning to butter. This is the margin between creamy mousse and grainy disaster.

Once the peanut butter custard is cool, fold in one-third of the whipped cream first. This lightens it up, makes the next fold easier. Then fold in the rest, gently. No big strokes. No overmixing. Just until you can’t see streaks of white cream anymore.

Divide it among six glasses — about three-quarters of a cup each. Cover them. Stick them in the fridge for 3 to 4 hours. The mousse firms up from underneath. You’ll know it’s ready when it’s set but still moves a tiny bit if you jiggle the glass.

While the mousse is setting, make the crunchy topping. Line a baking tray with parchment or a silicone mat.

Melt chocolate, peanut butter, butter, and maple syrup together in a microwave-safe bowl. Do it in 30-second bursts, stirring between each one. Warm but not hot — you’re not trying to cook anything, just combine it smooth.

Dump in the crushed cornflakes and peanuts. Stir until everything’s coated. Spread it thin across the lined tray, breaking it apart a bit as you go so it doesn’t turn into one big slab.

Chill it for 25 to 35 minutes. It hardens up. Break it into shards. Store it in an airtight container in the fridge.

Top each mousse with a spoonful of caramel sauce and a handful of the chocolate crunch pieces right before you serve it.

Peanut Butter Caramel Mousse Recipe

By Emma

Prep:

35 min

Cook:

15 min

Total:

50 min

Servings:

6 servings

Ingredients

• 6 ml (1 1/4 teaspoon) gelatin powder
• 20 ml (1 1/3 tablespoon) cold water
• 60 g (1/4 cup) granulated sugar
• 3 egg yolks
• 140 ml (2/3 cup) whole milk
• 90 ml (3/8 cup) creamy peanut butter
• 270 ml (1 1/8 cups) 35% whipping cream
• Garnish ===
• 90 g (3 oz) chopped 65% dark chocolate
• 40 ml (2 2/3 tablespoons) creamy peanut butter
• 20 ml (1 1/3 tablespoons) unsalted butter
• 20 ml (1 1/3 tablespoons) maple syrup
• 50 g (1 2/3 cups) lightly crushed cornflakes
• 25 g (2 tablespoons) roasted salted peanuts
• Caramel sauce, as desired

Method

1. 1 Gelatin bloomed: sprinkle gelatin over cold water, leave 10 minutes until spongy.
2. 2 Whisk sugar and yolks vigorously 1-2 minutes till thick and pale.
3. 3 Add milk while stirring continuously.
4. 4 Cook custard over medium-low heat, stirring constantly with wooden spoon. Scrape all sides. Thickens to coat back of spoon in about 7 minutes. Remove from heat immediately.
5. 5 Incorporate bloomed gelatin and peanut butter swiftly, whisk until completely dissolved and uniform.
6. 6 Transfer to large bowl. Cover surface directly with plastic wrap to prevent skin. Let cool to room temperature, about 25 minutes. Avoid setting gelatin now.
7. 7 Meanwhile, whip cream to soft peaks but still pliable.
8. 8 Fold one-third cream gently into peanut butter custard to lighten. Then fold remaining cream carefully, no deflating. Aim for smooth blend.
9. 9 Divide mousse evenly among 6 180 ml (3/4 cup) glasses. Cover and refrigerate 3-4 hours until firm to touch.
10. 10 Prepare crunchy topping: spread silicone mat or parchment on baking tray.
11. 11 Melt chocolate, peanut butter, butter, maple syrup in microwave-safe bowl in 30-second bursts, stirring to smooth consistency. Warm but not too hot.
12. 12 Add crushed cornflakes and peanuts, stir to coat and combine thoroughly.
13. 13 Spread mixture thinly across lined tray, separating bits to avoid clumps.
14. 14 Chill in fridge 25-35 minutes until firm and breakable. Break into shards. Store airtight refrigerated.
15. 15 Serve mousse garnished with spoonful caramel and sprinkle with chocolate crunch pieces.

Nutritional information

Calories

480

Protein

9g

Carbs

28g

Fat

36g

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Frequently Asked Questions About Peanut Butter Caramel Mousse

Can you make this without eggs? Not really with the same texture. The yolks are what makes it custardy. There are eggless mousse recipes but they’re different things entirely.

How long does this actually keep? Three days, maybe four. The mousse stays good — the cornflake topping gets soft if you add it too early, so make it the day of and keep it stored separately.

What if the mousse doesn’t set? Gelatin didn’t bloom properly or the custard was too hot when you added it and killed it. Just make it again and bloom the gelatin in cold water for the full ten minutes. Temperature matters. That’s usually the culprit.

Can you substitute the whipping cream with something else? Greek yogurt makes it denser, less fluffy. Heavy cream is the actual choice here. Coconut cream works but tastes like coconut. Not worth changing what works.

Does the caramel sauce need to be homemade? No. Store-bought is fine. Just use what you like. Some people use dulce de leche. Some use salted caramel. The point is it contrasts with the peanut butter — whatever sauce does that for you works.

Why does the recipe cool it on the counter instead of the fridge? Gelatin sets faster when it’s warm, slower when it’s cold. Cooling it at room temperature lets it firm up evenly without creating a weird texture. If you throw it straight in the fridge, the edges set before the middle and it gets grainy.