Combine dry ingredients. In your stand mixer bowl, mix together the bread flour, granulated sugar, instant yeast, and kosher salt. Knead on low speed for about 30 seconds to ensure everything is well mixed.

Whisk wet ingredients. In a large liquid measuring cup, combine the warmed milk, large egg, egg yolk, and melted butter. Whisk until blended, and let those ingredients meld together nicely.

Knead the dough. Gradually pour the wet mixture into the dry ingredients while kneading on medium-low speed for 10 minutes. The dough should become smooth and elastic.

Chill the dough. Cover the bowl with plastic wrap and refrigerate overnight.

Prepare the pastry cream. In a medium saucepan, whisk together ¼ cup of granulated sugar and whole milk. Heat on medium-low until steaming.

Whisk egg mixture. In a bowl, mix the large egg, cornstarch, and remaining sugar until smooth. Temper by slowly adding the hot milk mixture.

Cook the cream. Pour the egg mixture back into the saucepan and cook over medium heat, whisking as it thickens.

Flavor the cream. Whisk in the unsalted butter, passion fruit puree, and vanilla extract until smooth.

Cool the cream. Strain the mixture through a fine-mesh sieve into an airtight container. Refrigerate overnight.

Shape the dough. Once the dough has chilled, roll it out on a floured surface to about ½-inch thick and cut out 6 circles.

Let rise. Arrange the dough circles on a floured sheet pan, cover loosely, and let them rise for 1 hour.

Heat the oil. Fill a heavy pot or deep fryer with vegetable oil and heat to 365°F.

Prepare for frying. Line a wire rack with paper towels and place sugar in a shallow bowl.

Pipe the cream. Transfer your chilled pastry cream into a piping bag fitted with a Bismark tip.

Fry the malasadas. Fry 2 donuts at a time for about 2 minutes per side until golden brown.

Add sweetness. While still warm, toss each donut in granulated sugar.

Fill with cream. After cooling for 15 minutes, poke a hole in each malasada, filling them with cream.

Serve and enjoy! These treats are best enjoyed warm or at room temperature.