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Custard Slice Recipe

Custard Slice Recipe


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4.8 from 10 reviews

  • Total Time: 75 mins
  • Yield: 8 1x

Description

Mouthwatering custard slice elevates classic dessert with silky layers of creamy goodness. Sweet pastry and velvety custard create a delightful treat you’ll savor down to the last delectable bite.


Ingredients

Scale

Main Ingredients (Pastry and Filling):

  • 225 grams (8 ounces) plain flour
  • 200 grams (7 ounces) butter, chilled and cut into cubes
  • 500 milliliters (18 fluid ounces) milk
  • 4 egg yolks
  • 1 vanilla pod
  • 100 grams (3.5 ounces) caster sugar
  • 40 grams (1.5 ounces) cornflour

Thickening and Binding Ingredients:

  • 12 teaspoons salt
  • 140160 milliliters (55.5 fluid ounces) water
  • 40 grams (1.5 ounces) butter

Topping and Decoration:

  • 200 grams (7 ounces) icing sugar
  • 5 teaspoons water
  • 50 grams (2 ounces) dark chocolate, melted

Instructions

  1. Prepare the pastry dough by combining flour and salt, then incorporate butter in two stages – first a third, then the remaining chunks.
  2. Gradually introduce water to form a cohesive dough, ensuring even hydration.
  3. Transform the dough into a rectangular shape, executing a precise tri-fold technique, then refrigerate for 10 minutes to relax gluten.
  4. Repeat the roll-fold-chill process three additional times to develop flaky, layered pastry.
  5. Create custard base by whisking egg yolks with sugar and cornflour until smooth and pale.
  6. Gently warm milk with vanilla, then gradually stream into yolk mixture while continuously whisking to prevent curdling.
  7. Return custard to pan, cooking over medium heat until thickened and coating the back of a spoon, approximately 3-5 minutes.
  8. Incorporate butter into custard, creating a luxurious texture, then refrigerate to cool completely.
  9. Preheat oven to 220C (425F), preparing baking trays with parchment paper.
  10. Divide pastry into two equal portions, rolling each to precise 20cm x 8in x 5mm dimensions, then chill to maintain structure.
  11. Bake pastry sheets until golden brown and crisp, approximately 15-20 minutes, then allow complete cooling.
  12. Assemble dessert by positioning first pastry layer in serving tin, spreading custard evenly across surface.
  13. Carefully place second pastry sheet atop custard, creating a elegant layered presentation.
  14. Prepare glossy icing by mixing powdered sugar with water until smooth.
  15. Drizzle icing across top layer, creating an elegant finish.
  16. Optional: Pipe delicate chocolate lines and feather with toothpick for decorative effect.
  17. Refrigerate until fully set, then slice into precise portions and serve chilled.

Notes

  • Butter Temperature Matters: Keep butter cold and in small chunks for a flakier, more delicate pastry texture that melts in your mouth.
  • Gentle Milk Heating: Warm milk slowly and steadily to prevent scorching, ensuring a smooth, silky custard without lumps.
  • Pastry Chilling Technique: Frequent chilling between roll and fold stages helps develop those gorgeous, delicate layers that create incredible crispness.
  • Gluten-Free Adaptation: Substitute regular flour with a gluten-free blend to make this dessert accessible for those with wheat sensitivities, maintaining similar texture and taste.
  • Prep Time: 60 mins
  • Cook Time: 15 mins
  • Category: Desserts
  • Method: Baking
  • Cuisine: British

Nutrition

  • Serving Size: 8
  • Calories: 340
  • Sugar: 25 g
  • Sodium: 900 mg
  • Fat: 22 g
  • Saturated Fat: 13 g
  • Unsaturated Fat: 7 g
  • Trans Fat: 0.3 g
  • Carbohydrates: 30 g
  • Fiber: 1 g
  • Protein: 5 g
  • Cholesterol: 115 mg