Liguria and broader northern Italy. The tradition of frying set cream exists in multiple Italian regions and in Spain, suggesting a shared medieval origin in Mediterranean court cooking.
Latte dolce fritto is a Ligurian (and broader northern Italian) dessert tradition: a set pastry cream (latte dolce) made from milk, eggs, flour, and sugar, poured into a shallow tray, chilled until firm, cut into shapes, coated in egg-and-breadcrumb, and deep-fried until golden. The interior melts to a warm, flowing custard during frying while the exterior crisps. It is sold at sagre (festivals) throughout Liguria and is simultaneously rustic and technically refined.
The fried exterior is nutty and crisp; the interior is warm, soft custard with vanilla and lemon fragrance. The contrast between crunchy and flowing is the pleasure. Best eaten at the moment of service — within 2 minutes of leaving the fryer.
The cream is made with a high starch ratio — more flour than a standard crème pâtissière — so it sets firmly enough to slice and handle after chilling. Ratio: 1 litre milk, 6 egg yolks, 120g sugar, 100g 00 flour or a mix of flour and cornstarch. Cook the cream over medium heat, stirring constantly, until it thickens to a stiff, glossy paste that pulls away from the pan. Spread 2-3cm deep in an oiled tray, cool completely (minimum 2 hours), then cut into rectangles or diamonds. Dip in egg wash, coat in fine dry breadcrumbs, fry at 175°C for 2-3 minutes until golden.
Add lemon zest and a small amount of vanilla to the cream — the aromatics carry through frying. Dust with icing sugar and serve immediately — fried milk custard does not hold; the interior flows within minutes. If the fried pieces collapse, the cream was either too thin or not cold enough when coated.
Cream too thin — won't set enough to slice cleanly. Frying at too high a temperature — the exterior burns before the interior warms through. Not chilling completely — the cream tears when cutting. Breadcrumbs too coarse — don't form a fine, even crust.
Ada Boni, Talismano della Felicità; Slow Food Editore, Liguria in Cucina