Tiramisu cream

Ingredients

For the Mascarpone Filling:

5 large eggs (about 8 3/4 ounces; 245 g)

3 1/2 ounces sugar (about 1/2 cup; 100 g)

1/4 teaspoon (1 g) Diamond Crystal kosher salt; for table salt, use about half as much by volume or the same weight

24 ounces mascarpone (three 8-ounce containers; 680 g), straight from the fridge

Directions

For the Mascarpone Filling: Fill a 2- or 3-quart saucier with a few inches of water; bring to a boil, then lower heat and adjust to maintain a steady supply of steam. Combine eggs, sugar, and salt in the bowl of a stand mixer, using a flexible spatula to stir. Place over the steaming pot (if the bowl touches the bottom, crumple a strip of foil into a ring to act as a booster seat) and cook, stirring and scraping constantly, until warmed to 160°F (71°C), about 5 minutes. This should not take significantly longer; major delays simply indicate insufficient heat/lack of steam.

Transfer to a stand mixer fitted with a whisk attachment. Whip on high speed until eggs are foamy, more than quadrupled in size, and thick enough to briefly mound up like soft-serve ice cream when dropped from the whisk, between 5 and 10 minutes depending on the horsepower of your mixer. Reduce speed to medium and begin adding mascarpone roughly 1/4 cup at a time; no need to wait between additions. Once mascarpone is incorporated, pause to scrape bowl with a flexible spatula, then resume whipping on medium-high until mixture is homogeneous and thick, about 5 to 10 seconds more. Don’t fret over small flecks of mascarpone, since they will smooth out on their own over time.