Egg yolks
8 large
Save whites for meringue or freezing
Vanilla extract
3 tsp
Pure vanilla for best flavor
Dark rum (optional)
2 tbsp
Adds depth — skip for kid-friendly version
Heavy whipping cream (chilled)
2 cups
For light, airy texture
Powdered sugar
2 tbsp
For sweetening the whipped cream
Pro Tip: Chill your mixing bowl and beaters — helps cream whip faster.
Step-by-Step: How to Make Vanilla Custard Cream Squares
Step 1: Bake the Puff Pastry
Preheat oven to 400°F (200°C)
Line two baking sheets with parchment paper
Unroll puff pastry sheets and place on trays
Prick all over with a fork — prevents puffing too much
Bake 15–20 minutes, until golden and crisp
Let cool completely on a wire rack
Cooling is key — warm pastry will melt the filling.
Step 2: Make the Custard
Warm milk in a saucepan over medium heat — until steaming (not boiling)
In a bowl, whisk together:
Sugar
Flour
Egg yolks
Temper the yolks: Slowly pour hot milk into the yolk mixture, whisking constantly
Pour back into the saucepan and cook over medium heat, stirring nonstop until thick and bubbling (3–5 mins)
Remove from heat
Stir in vanilla and rum (if using)
Cover with plastic wrap directly on the surface — prevents a skin from forming
Chill 1–2 hours until completely cool
Don’t skip tempering — it keeps the custard smooth and lump-free.
Step 3: Whip the Cream
In a chilled bowl, beat heavy cream and 2 tbsp powdered sugar until stiff peaks form
Gently fold into the cooled custard — one-third at a time — until light and fluffy
Fold, don’t stir — keeps the filling airy.
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