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Lemon Gelato

Lemon gelato is an Italian frozen dessert made with a hot-milk custard that thickens like pudding, then chills and churns for a dense, creamy scoop. This homemade gelato keeps an intensely bright citrus flavor with lemon zest stirred in for a silkier texture than sorbet.
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Prep Time 20 minutes
Cook Time 15 minutes
chilling + freezing 4 minutes
Total Time 39 minutes
Servings: 6 servings
Course: Dessert
Cuisine: Italian
Calories: 430
Ingredients Equipment Method Notes

Ingredients
  

Lemon gelato base
  • 2 cup whole milk
  • 0.5 cup heavy cream
  • 0.75 cup granulated sugar
  • 4 egg yolks
  • 1 tbsp cornstarch
  • 0.5 cup fresh lemon juice
  • 2 tbsp lemon zest
  • 0.25 tsp vanilla extract
  • 1 salt pinch

Equipment

  • 1 ice cream maker
  • 1 saucepan

Method
 

Make the custard
  1. Heat whole milk and heavy cream together in a saucepan over medium heat until steaming, with small bubbles forming at the edges. Keep it hot but do not boil.
  2. Whisk egg yolks, granulated sugar, and cornstarch in a bowl until pale and thick. The mixture should look smooth and slightly heavier.
  3. Slowly whisk the hot milk mixture into the egg yolk mixture to temper. Pour gradually while whisking to prevent scrambling.
  4. Return the mixture to the saucepan and cook over medium heat, stirring constantly, until thickened to a pudding consistency, about 10–15 minutes. Visual cue: it should coat the back of a spoon and hold a line when you draw a finger through it.
Flavor and chill
  1. Remove the saucepan from heat, then stir in fresh lemon juice, lemon zest, vanilla extract, and salt until fully combined and glossy. The aroma should turn bright and strongly lemony.
  2. Cool completely over an ice bath for 10–15 minutes, stirring occasionally, until the custard is no longer hot to the touch. Visual cue: it should feel cool and slightly thickened.
  3. Refrigerate the custard at least 4 hours until very cold. Visual cue: the surface should be chilled and the mixture should pour slowly.
Churn and freeze
  1. Churn the chilled custard in an ice cream maker on the lowest setting until dense and scoopable, about 20–30 minutes. Visual cue: it should look pale yellow and creamy, not watery.
  2. Serve immediately for a softer texture, or freeze 1–2 hours to firm up before serving. Visual cue: the gelato becomes denser and holds an oval quenelle shape.

Notes

Pro tip: cook the custard until it truly reaches pudding consistency, because this thickness is what gives dense, scoopable gelato instead of icy sorbet. Store covered in the freezer for up to 2 weeks; for best texture, let it sit at room temperature 5–10 minutes before scooping. Freezing: yes (this recipe is designed for freezing). Dietary swap: for a lactose-light option, replace whole milk and heavy cream with an equivalent amount of plain lactose-free dairy (gelato texture remains closest to the original).