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100k Subscribers Celebration Cake (Number & Letter Shaped Sablé with Vanilla Diplomate Cream)

Recipe by JustInCooking

A show‑stopping celebration cake made to mark 100,000 YouTube subscribers. Crunchy almond‑scented sablé biscuits are cut into numbers and letters, stacked with a light vanilla diplomate cream (pastry cream, mascarpone and whipped cream) and finished with fresh fruit, meringues, macarons and edible flowers. Perfect for a milestone party or any special occasion.

MediumFrenchServes 12

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Source Video
7h 12m
Prep
50m
Cook
58m
Cleanup
9h
Total

Cost Breakdown

$27.55
Total cost
$2.30
Per serving

Critical Success Points

  • Form the dough to the correct consistency (step 3).
  • Chill the dough for at least 2 hours (step 4).
  • Bake the biscuits until lightly golden, not over‑browned (step 7).
  • Thicken the pastry cream without curdling (step 12).
  • Ensure pastry cream is fully chilled before folding (step 14).
  • Fold the mascarpone and whipped cream gently to keep the cream light (step 16).
  • Assemble the layers while the cream is still firm (step 18).
  • Final chill before decoration to set the structure (step 19).

Safety Warnings

  • Handle the hot milk and pastry cream carefully to avoid burns.
  • Use a sharp knife or cutter with caution when cutting the dough.
  • Gelatin is derived from animal collagen; avoid if serving vegans.
  • Raw eggs are used; consider pasteurized eggs if concerned about salmonella.

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