Ingredients:
- 500 ml whole milk
- 150 g granulated sugar
- 4 large egg yolks
- 40 g cornstarch
- 2 tsp vanilla bean paste
- 0.25 tsp salt
- 450 g unsalted butter, softened to room temperature
Instructions:
- Pour 500 ml whole milk into a heavy saucepan over medium heat until it starts to steam. Note: Don't let it reach a rolling boil or it might scorch.
- In a separate bowl, combine 150 g sugar, 4 egg yolks, 40 g cornstarch, and 0.25 tsp salt.
- Slowly drizzle half of the hot milk into the egg mixture while whisking constantly until the bowl feels warm.
- Return the entire mixture to the saucepan and cook over medium low heat.
- Whisk vigorously for about 3 minutes until the pudding is thick and bubbling.
- Pour the hot mixture through a fine mesh sieve into a clean bowl.
- Stir in 2 tsp vanilla bean paste until the black specks are evenly distributed.
- Cover with plastic wrap touching the surface and let it sit until it reaches room temperature.
- Whip 450 g softened butter in a stand mixer for 5 minutes until it looks pale and fluffy.
- Add the cooled custard one tablespoon at a time to the butter until a silky, stable frosting forms.