Step 1: Prepare the gelatin

Soak the gelatin leaves in cold water for 5-10 minutes until soft. If using powdered gelatin, follow the packet instructions to bloom it in water.

Step 2: Heat the cream mixture

In a medium saucepan, combine the double cream, milk, and caster sugar. Heat gently over medium heat, stirring occasionally, until the sugar dissolves and the mixture is hot but not boiling.

Step 3: Add vanilla and gelatin

Remove the saucepan from the heat. Stir in the vanilla extract. Squeeze out the excess water from the soaked gelatin leaves and add them to the cream mixture, stirring until fully dissolved.

Step 4: Strain and pour

Pass the mixture through a fine sieve into a jug to remove any lumps. Pour the mixture evenly into small bowls or ramekins.

Step 5: Chill to set

Cover the ramekins with cling film and refrigerate for at least 4 hours, or until the panna cotta is set and firm.

Step 6: Serve

To serve, run a knife around the edge of the panna cotta and gently unmold it onto a plate, or serve directly in the ramekin. Top with fresh berries, fruit compote, or your favorite sauce.