French Vanilla Slices

  • Yield : 10
  • Servings : 10
  • Prep Time : 10m
  • Cook Time : 30m
  • Ready In : 3:0 h

One of my favorite desserts. They go great with a cuppa. :)


  • 2 sheets of ready-rolled frozen puff pastry, thawed
  • 400ml fresh cream (not thickened)
  • 350ml milk
  • 1/2 cup caster sugar
  • 50g butter
  • 2 tsp vanilla paste or extract
  • 1/2 cup water
  • 1/2 cup cornflour
  • 6 egg yolks, separated from whites
  • Icing sugar for dusting


Step 1

Preheat the oven to 180C. Trim both sheets of puff pastry to fit a rectangular slice tin, measuring 20 centimeters by 30 centimeters.

Step 2

Next, line a baking tray with non-stick paper. Place the two trimmed pastry sheets on the baking tray side by side, with a small gap between to allow room for spreading. Top with another layer of baking paper and place a tray on top of the baking paper to weigh the pastry down while cooking (to limit rising and bubbling).

Step 3

Bake for 15 to 20 minutes, checking for color. They should be light golden. Cool on wire racks.

Step 4

To make the custard filling, place the cream, milk, sugar, butter and vanilla in a saucepan over a medium heat. Cook until the mixture is hot, but not quite boiling, then remove from the heat. Mix the water and cornflour to a smooth paste, then whisk into the hot milk mixture. Add the beaten egg yolks and stir briskly. Return to a low heat, stirring continuously until the mixture thickens. Remove from the heat and cool to room temperature. Line the tin with non-stick baking paper, greasing lightly to hold the paper in place, with the paper hanging over the sides (the baking paper provides a handle to lift out the slice once set).

Step 5

Place one of the cooked pastry sheets into the base of the lined tin. It should fit snugly. If the pastry sheet is too big, place on a flat board and trim carefully to fit. Spread the cooled custard over the pastry. Top with the remaining pastry sheet, trimming to fit again if necessary. Fold the overhanging baking paper back over the top to enclose. Cover with plastic wrap. Refrigerate for at least two hours until set.

Step 6

To remove, carefully lift the overhanging baking paper and place on a board, ready to slice. Peel away the paper and dust with icing sugar. To successfully slice this without squashing the custard from the middle, use a small, sharp knife and cut through only the top layer of pastry, marking out 10 even-sized slices. Then go back and slice the rest of the way down through the initial cut in the pastry, with a large, sharp knife until you hit the bottom layer of pastry, pushing down to cut.

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