Ingredients:
- 2 cups heavy whipping cream
- 5 large egg yolks
- 1/3 cup granulated sugar
- 1 tbsp fresh lemon zest
- 3 tbsp fresh lemon juice
- 1 tsp vanilla extract
- 1 pinch salt
- 4 tsp superfine sugar
Instructions:
- Preheat the oven to 325°F (160°C).
- In a saucepan over medium heat, combine 2 cups heavy whipping cream and 1 tbsp fresh lemon zest; heat until the cream just begins to simmer, then remove from heat and let steep for 5 minutes.
- In a separate bowl, whisk 5 large egg yolks, 1/3 cup granulated sugar, and 1 pinch salt until the mixture is pale and slightly thickened.
- Slowly drizzle the warm cream into the egg mixture, whisking constantly to temper the eggs.
- Stir in 3 tbsp fresh lemon juice and 1 tsp vanilla extract.
- Pour the custard mixture through a fine-mesh strainer into a jug to ensure it is perfectly smooth.
- Place four 6 oz ramekins in a roasting pan and divide the custard evenly between them.
- Pour boiling water into the roasting pan until it reaches halfway up the sides of the ramekins.
- Bake for 30-35 minutes until the edges are set, the center has a slight jiggle, and the internal temperature reaches 160°F (71°C).
- Remove ramekins from the water bath, cool to room temperature, and refrigerate for at least 4 hours.
- Just before serving, sprinkle a thin, even layer of the 4 tsp superfine sugar (divided equally) over the chilled custard.
- Using a kitchen torch, move in circular motions until the sugar bubbles and turns a dark golden brown.
- Wait 60 seconds for the sugar to harden into a crisp shell before serving.