Walnut-Blackberry Torte with Mocha Buttercream

Name: Walnut-Blackberry Torte with Mocha Buttercream
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 1 1/2 cups walnuts (6 oz); 1/3 cup all-purpose flour; 1 stick (1/2 cup) unsalted butter, softened; 2/3 cup sugar; 6 large eggs, separated; 1 teaspoon vanilla; 3/4 teaspoon salt; 1 1/2 teaspoons unflavored gelatin (less than 1 envelope); 1 tablespoon water; 3/4 cup strained blackberry preserves (from 1 cup with seeds); Mocha buttercream; Special equipment: a pastry bag fitted with an 3/4-inch plain tip

Bake this irresistible Walnut-Blackberry Torte with Mocha Buttercream at home. Made with walnuts, flour, unsalted butter and sugar. Easy step-by-step in…

This Walnut-Blackberry Torte with Mocha Buttercream relies on simple, everyday ingredients such as walnuts (6 oz), all-purpose flour, sugar and large eggs, separated. It comes together quickly and makes 4 servings, at about 873 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

Whether you're rounding off a family dinner, bringing a treat to a gathering, or simply satisfying a sweet craving, this Walnut-Blackberry Torte with Mocha Buttercream delivers. Serve it warm or at room temperature, and add a scoop of ice cream or a spoonful of whipped cream for an extra-special finish.

Updated Jun 30, 2026

Serves 4 Baking & Desserts

Servings: persons

1 1/2 cups walnuts (6 oz)
1/3 cup all-purpose flour
1 stick (1/2 cup) unsalted butter, softened
2/3 cup sugar
6 large eggs, separated
1 teaspoon vanilla
3/4 teaspoon salt
1 1/2 teaspoons unflavored gelatin (less than 1 envelope)
1 tablespoon water
3/4 cup strained blackberry preserves (from 1 cup with seeds)
Mocha buttercream
Special equipment: a pastry bag fitted with an 3/4-inch plain tip

1
Preheat oven to 350F.
2
Butter a 15- by 10- by 1-inch baking pan and line bottom with wax or parchment paper.
3
Butter paper.
4
Pulse walnuts in a food processor until finely chopped (do not allow to become a paste) and stir together with flour in a bowl.
5
Beat together butter and 1/3 cup sugar in a large bowl with an electric mixer until pale and fluffy.
6
Add yolks 1 at a time, beating well after each addition, then beat in vanilla.
7
Stir in nut mixture by hand.
8
Beat egg whites with salt with cleaned beaters in another bowl at medium speed until they hold soft peaks.
9
Add remaining 1/3 cup sugar and beat at high speed until whites just hold stiff peaks.
10
Stir one fourth of whites into batter to lighten, then fold in remaining whites gently but thoroughly.
11
Spread batter evenly in baking pan, smoothing top.
12
Bake in middle of oven until center is set and top is pale golden, 25 to 30 minutes.
13
Cool cake in pan on a rack.
14
Cover cake with an inverted baking sheet, then invert cake onto it and remove paper.
15
Reinvert cake onto a cutting board.
16
Trim about 1/4 inch from each side of cake with a sharp knife, then cut cake crosswise into 4 equal rectangles (each about 9 by 3 1/2 inches).
17
Line baking sheet with wax or parchment paper and transfer cake to baking sheet, arranging layers side by side, touching.
18
Sprinkle gelatin over water in a small bowl and let stand 1 minute to soften.
19
Heat strained preserves in a double boiler or a metal bowl set over a saucepan of simmering water until warm, then add gelatin mixture and stir until dissolved, about 2 minutes.
20
Remove bowl from heat and set in a larger bowl of ice water.
21
Cool, stirring occasionally, until cold, 5 to 10 minutes.
22
Spread jam evenly over cake layers and chill until set, about 1 hour.
23
Reserve the nicest-looking cake layer for top.
24
Put 1 cake layer, jam side up, on a cake platter and spread with 1/3 cup buttercream.
25
Top with second cake layer, jam side up, and spread with 1/3 cup buttercream.
26
Top with third layer, jam side up, and spread with 1/3 cup buttercream.
27
Top with reserved cake layer, jam side up.
28
Frost sides of cake with about 1 cup buttercream.
29
Transfer remaining buttercream to pastry bag and pipe a decorative border around top edge of cake.

873

kcal

Calories

Fat

Carbs

Protein

Fat Carbs Protein

* Per serving · 4 servings · Values may vary.

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Preheat the oven fully and bake on the middle rack for the most even results.
Check for doneness a few minutes early — a toothpick in the center should come out with just a few moist crumbs.
Let it cool before slicing so it sets properly and holds its shape.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
Brown sugar instead of white sugar adds a deeper, more caramel-like flavor.
Leave out the nuts to make it nut-free, or swap in seeds for a similar crunch.
A good 1:1 gluten-free flour blend works well if you need a gluten-free version.
Coconut cream is a reliable plant-based alternative to dairy cream.

No specific allergen information. Please check the ingredient list for possible allergens.

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Frequently Asked Questions

This recipe makes 4 servings. You can adjust the portion size directly on this page.

You need 12 ingredients. The key ingredients include: 1 1/2 cups walnuts (6 oz), 1/3 cup all-purpose flour, 1 stick (1/2 cup) unsalted butter, softened, 2/3 cup sugar, and more.

Yes, Walnut-Blackberry Torte with Mocha Buttercream falls under the Baking & Desserts category and is a great choice for this type of meal.

Store in an airtight container at room temperature for up to 3–5 days. For longer storage, freeze for up to 3 months — no need to refrigerate or reheat.

Quick Info

Servings
4 servings
Calories
873 kcal
Category
Baking & Desserts

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