Nothing says nostalgic bakery comfort food quite like a Classic Vanilla Slice (affectionately known to many as a “snot block” or Mille-Feuille). This iconic treat features thick, velvety vanilla custard sandwiched between layers of perfectly crisp, flaky puff pastry, finished with a generous dusting of powdered sugar.
If you’ve been looking for a foolproof way to recreate this bakery favorite at home with maximum flavor and minimal fuss, this is the recipe for you.
Why This Recipe Works
- The Double-Vanilla Punch: Using both custard powder and real vanilla bean paste creates a deep, aromatic flavor and that classic golden hue.
- Foolproof Thick Custard: The combination of egg yolks, cornstarch-based custard powder, and butter ensures a sliceable custard that holds its shape beautifully without spilling out when you take a bite.
- Effortless Crisp Layers: Using high-quality pre-made puff pastry sheets gives you those sky-high, buttery layers without hours of laminating dough.
Ingredients You’ll Need
- Puff Pastry Sheets: 2 sheets (frozen, thawed)
- Vanilla Custard Powder: ½ cup
- Whole Milk: 2 cups
- Granulated Sugar: ⅔ cup (divided into two ⅓ cup portions)
- Unsalted Butter: 50g (cubed, at room temperature)
- Egg Yolks: 4 large eggs
- Vanilla Bean Paste: 1 tbsp
- Powdered Sugar: For dusting
Step-by-Step Instructions
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