Boston Cream Hawaiian Donuts in 25 Minutes

Instructions:

1. Combine 2 cups milk and 2 tbsp cornstarch in a saucepan while cold.
2. Stir in 0.5 cup sugar and 3 egg yolks until the mixture is pale yellow.
3. Cook over medium heat for 6-8 minutes, whisking constantly until it starts to bubble and shatter the surface.
4. Remove from heat and stir in 1 tsp vanilla bean paste and 2 tbsp chilled butter until the mixture looks glossy.
5. Cover with plastic wrap, pressing it directly onto the surface.
6. Poke a hole in the side of each Hawaiian roll using a straw or chopstick until you feel the hollow center.
7. Pipe the cooled custard into each roll until the roll feels heavy and slightly plump.
8. Apply 2 tbsp melted butter over the tops until they shimmer.
9. Heat 0.33 cup heavy cream until it begins to simmer, then pour over 4 oz chopped chocolate and 1 tsp corn syrup.
10. Submerge the top of each roll into the chocolate until a thick, dark crown forms. Let them rest for 15 minutes before serving.