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Traditional Vanilla Custard Slice

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This traditional vanilla custard slice features layers of crisp puff pastry and silky homemade vanilla custard, all topped with a dusting of powdered sugar. A nostalgic, bakery-style dessert that’s simple yet elegant.

  • Total Time: 9 hours
  • Yield: 9–12 servings

Ingredients

  • Pastry:
    • 2 sheets frozen butter puff pastry
  • Vanilla Custard:
    • 110 grams caster sugar
    • 40 grams corn starch
    • 8 egg yolks
    • 750 milliliters milk, heated
    • 2 teaspoons vanilla bean paste
    • 113 grams unsalted butter
    • 50 grams powdered sugar (for dusting)

Instructions

  1. Preheat the oven to 150°C (300°F). Line baking trays with parchment paper and place puff pastry sheets on them. Let thaw.
  2. Prick the thawed pastry all over with a fork, cover with another piece of parchment paper, and weigh down with another tray. Bake for 20 minutes until golden. Let cool completely.
  3. In a large bowl, whisk together caster sugar, corn starch, and egg yolks until smooth. Slowly whisk in a small amount of the hot milk, then add the rest and the vanilla bean paste.
  4. Transfer the mixture to a saucepan and cook over medium-high heat, stirring constantly for about 5–6 minutes until thickened. Remove from heat and stir in butter until melted and smooth.
  5. Line a 9-inch square baking tin with parchment paper. Trim one puff pastry sheet to fit and place it at the bottom of the tin.
  6. Pour the custard over the base and smooth evenly. Top with the second trimmed pastry sheet and press gently. Chill overnight until fully set.
  7. When ready to serve, lift out of the tin, slice carefully with a serrated knife, and dust with powdered sugar.

Notes

  • Use a serrated knife and clean between cuts for neat slices.
  • Chill for at least 8 hours or overnight for best results.
  • For extra flavor, add citrus zest, raspberry puree, or infuse the custard with coffee.
  • Author: Amelia
  • Prep Time: 30 minutes
  • Cook Time: 30 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: Australian, European
  • Diet: Vegetarian

Nutrition

  • Serving Size: 1 slice (1/12 of recipe)
  • Calories: 290
  • Sugar: 18g
  • Sodium: 150mg
  • Fat: 18g
  • Saturated Fat: 10g
  • Unsaturated Fat: 6g
  • Trans Fat: 0g
  • Carbohydrates: 26g
  • Fiber: 0g
  • Protein: 4g
  • Cholesterol: 115mg