Creating Chocolate Orange Posset is a simple process. Just follow these steps:

1. Prepare the Gelatin (Optional): If using gelatin for a thicker texture, sprinkle gelatin powder into 2 tablespoons of cold water. Let it sit for 5 minutes to bloom.

2. Heat the Cream: In a medium saucepan, combine the heavy cream and granulated sugar. Heat over medium heat, stirring frequently until the mixture begins to simmer.

3. Add the Chocolate: Once the cream is simmering, remove it from the heat. Add the chopped semi-sweet chocolate and stir until fully melted and smooth.

4. Incorporate Orange: Stir in the freshly squeezed orange juice, orange zest, vanilla extract, and a pinch of salt. Mix until combined. If using gelatin, add the bloomed gelatin at this point and stir until completely dissolved.

5. Strain the Mixture: For an ultra-smooth texture, strain the mixture through a fine-mesh sieve into a jug or bowl to remove any lumps.

6. Pour into Servings: Divide the mixture into individual cups or ramekins.

7. Chill: Cover the cups with plastic wrap and place them in the refrigerator to chill for at least 4 hours, or until set.

8. Serve: Once set, serve the Chocolate Orange Posset chilled and enjoy its decadent chocolaty flavor paired with bright orange notes.