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Frühlingsgrün Pea Choux-Torte

A sophisticated Austrian torte featuring airy choux layers, sweet pea mousse, and a fresh green spring glaze.

Total: 6 hours (includes chilling)
Difficulty: Advanced
Serves: 10
Austrian Cake Spring Advanced Choux Pastry Seasonal spring choux-pastry master-level

What Makes This Special

Frühlingsgrün Pea Choux-Torte is a modern, master-level celebration of Austrian pastry, reimagined for spring. Layers of delicately-crisp, golden choux pastry provide a cloud-like base and lid to a luminous sweet pea mousse, laced with white chocolate and lemon. A verdant spring green mirror glaze and bright microgreen garnish evoke the fresh promise of the season. Minimal processing celebrates the natural flavor and color of just-picked peas, while classic choux technique anchors the dessert in tradition.

Ingredients

This cake harmonizes delicate choux pastry with a silky pea-infused mousse and a glossy green mirror glaze. The fresh peas bring grassy sweetness and brilliant color, while white chocolate and cream add richness and structure. Each component is prepared with intention to preserve the essence of spring.

For the Choux Pastry

  • Butter, milk, and water: Classic choux foundations, yielding richness and crisp texture.
  • Flour: All-purpose, sifted for lump-free paste.
  • Eggs: Provide structure, rise, and delicate flavor.

For the Sweet Pea Mousse

  • Fresh peas: Blanched and pureed, their flavor is minimally processed to retain vibrancy.
  • White chocolate: Adds subtle sweetness and structure.
  • Cream: Lightens texture and adds richness.
  • Gelatin: Ensures a sliceable mousse.
  • Vanilla and lemon: Enhance and brighten the pea’s natural sweetness.

For the Ganache and Glaze

  • Pea puree: Lends a gentle color and subtle flavor to the ganache.
  • White chocolate & cream: Provide lush texture.
  • Mirror glaze: A show-stopping finish, tinted for a fresh, natural green look.

Instructions

Step 1: Prepare the Choux Pastry Discs

  1. Preheat oven: 200°C (fan 190°C). Line two baking trays with parchment. Draw two 20 cm circles on the reverse side.
  2. Heat liquids: In a medium saucepan, combine water, milk, butter, salt, and sugar. Heat over medium until butter is melted and mixture just begins to boil.
  3. Add flour: Remove from heat, dump in flour all at once, and stir vigorously with a wooden spoon until a smooth ball forms and pulls away from the pan (1-2 min).
  4. Dry the paste: Return to low heat, stirring constantly for 1-2 minutes more to slightly dry out the mixture. It should leave a thin film on the bottom.
  5. Cool and add eggs: Transfer to stand mixer bowl; allow to cool 3-5 mins (to ~50°C). Beat in eggs one at a time on medium, fully incorporating before adding the next. The batter should be glossy, thick, and fall in a “V” off the spatula.
  6. Pipe discs: Transfer to piping bag. Pipe two concentric spirals following the traced circles. Smooth with a damp finger. Optionally, pipe a border to neaten the edge.
  7. Bake: Bake both discs for 15 minutes, then reduce to 170°C and bake 20-25 minutes more. They’re done when deep golden, crisp, and hollow-sounding. Cool completely.

Step 2: Make the Sweet Pea Mousse

  1. Blanch peas: Bring a medium pan of salted water to a boil. Add fresh peas; blanch 1-2 mins until bright but just tender. Immediately transfer to ice water to preserve color.
  2. Puree: Drain peas, reserving 60 g for the ganache. Puree remaining peas with 25 g sugar and vanilla seeds in a food processor until silky. Pass through a sieve if needed.
  3. Bloom gelatin: Soak 3 sheets gelatin in cold water for 5 minutes.
  4. Melt chocolate: In a bowl, melt white chocolate gently over simmering water or in short microwave bursts.
  5. Combine: Heat 2 tbsp cream until steaming; stir in squeezed gelatin to dissolve. Blend into pea puree with lemon juice, then fold in melted white chocolate.
  6. Whip cream: Whip remaining cream to soft peaks. Gently fold into pea mixture in three additions, keeping it airy.
  7. Chill: Cover and refrigerate until slightly thickened (about 30-40 minutes), but still spreadable.

Step 3: Prepare Pea-White Chocolate Ganache

  1. Make ganache: Heat 40 ml cream to just below a simmer. Pour over 100 g white chocolate and 60 g reserved pea puree. Let sit 1 min, then stir until smooth.
  2. Cool: Chill until thickened to spreadable consistency (not runny).

Step 4: Assemble the Torte (Make-Ahead Point)

  1. Line a springform pan or cake ring (20 cm) with acetate for easy unmolding.
  2. Base: Place one choux disc in the base.
  3. Ganache: Spread cooled pea ganache evenly over the choux base.
  4. Mousse: Pour or pipe the thickened pea mousse over the ganache, smoothing the top.
  5. Top: Place the second choux disc on top, pressing lightly to adhere.
  6. Chill: Refrigerate at least 4 hours (or overnight) to fully set.

Step 5: Make the Spring Green Mirror Glaze

  1. Bloom gelatin: Soak 3 gelatin sheets in cold water (5 min).
  2. Cook syrup: In a saucepan, combine 100 ml water, sugar, and glucose. Heat to 103°C.
  3. Mix: Remove from heat; whisk in condensed milk and bloomed gelatin until fully dissolved.
  4. Add chocolate: Pour over white chocolate in a bowl. Let sit 2 mins, then blend with immersion blender until glossy and smooth. Tint with green coloring for a fresh pea hue.
  5. Cool glaze: Let glaze cool to 30-32°C (monitor with thermometer). If needed, strain to remove bubbles.

Step 6: Glaze and Finish

  1. Unmold: Carefully remove cake from pan and peel away acetate.
  2. Glaze: Set cake on a wire rack over a tray. Pour mirror glaze in one motion over the top, letting it flow evenly down the sides. Use offset spatula to tidy edge if needed.
  3. Decorate: Garnish top with microgreens, pea shoots, and edible flowers. Dust lightly with icing sugar.
  4. Chill again: Return to fridge for 30 minutes to set glaze before slicing and serving.

Pro Tips

  • Choux Mastery: Proper drying of the panade and gradual addition of eggs is key to achieving a stable, airy pastry that rises and holds its shape.
  • Vibrant Pea Mousse: Work quickly after blanching peas and chill purees promptly to retain the brightest color and flavor.
  • Make-Ahead: Choux discs and mousse can be made 1-2 days ahead. Assemble and glaze the day of serving for best texture and shine.

Troubleshooting

Flat choux discs? Your batter was too runny (too much egg) or oven was not hot enough. Next time, add eggs gradually and check for the “V” off the spatula. Always preheat oven thoroughly.

Mousse not setting? Gelatin may not have fully dissolved, or mousse was too warm when adding gelatin. Be sure to melt gelatin completely and chill the mousse properly before assembling.

Dull glaze or bubbles? Blend mirror glaze thoroughly and strain before pouring. Glaze at the correct temperature (30-32°C) for best shine.

Variations

  • Hazelnut-Choux: Add finely chopped toasted hazelnuts to the choux paste for a nutty twist.
  • Herbal Accent: Infuse the mousse with fresh mint or tarragon for added spring flair.
  • Raspberry Layer: Add a thin layer of tart raspberry or red currant jam atop the ganache for color and brightness.

Storage

Store the completed torte in an airtight container in the refrigerator for up to 2 days. Choux layers are best on day one but will gently soften as they absorb the mousse. For optimal freshness, add microgreens and edible flowers just before serving.

Enjoy this showpiece—the taste of spring in every slice!