(from David Lebovitz's website) With cocoa powder substituting the berry sauce, all you have to do is make the recipe, and add cocoa powder to it. So I 4 cups (1l) heavy cream (or half-and-half)
1/2 cup (100g) sugar
2 teaspoons of vanilla extract, or 1 vanilla bean, split lengthwise
2 packets powdered gelatin (about 4 1/2 teaspoons)
6 tablespoons (90ml) cold water
1. Heat the heavy cream and sugar in a saucepan or microwave. Once the sugar is dissolved, remove from heat and stir in the vanilla extract.
(If using a vanilla bean, scrape the seeds from the bean into the cream and add the bean pod. Cover, and let infuse for 30 minutes. Remove the bean then rewarm the mixture before continuing.) You can substitute the vanilla for chocolate.
2. Lightly oil eight custard cups with a neutral-tasting oil. (Any kind of cup will work, but the glass kinds work best)
3. Sprinkle the gelatin over the cold water in a medium-sized bowl and let stand 5 to 10 minutes.
4. Pour the very warm Panna Cotta mixture over the gelatin and stir until the gelatin is completely dissolved.
5. Divide the Panna Cotta mixture into the prepared cups, then chill them until firm, which will take at least two hours but I let them stand at least four hours. (Judy told me American refrigerators are colder than European ones. )
If you're pressed for time, pour the Panna Cotta mixture into wine goblets so you can serve them in the glasses, without unmolding.
6. Run a sharp knife around the edge of each Panna Cotta and unmold each onto a serving plate, and garnish as desired.
To make Panna Cotta with sheet gelatin: Soften 25g (approximately six sheets) in a liter of cold water for 5 to 10 minutes. Wring the sheets out and stir them into the warm Panna Cotta mixture in step # 4, until dissolved.
So, for mine, on the inside bottom of each custard cup, I added one layer of cocoa powder, pour the Cocoa Panna Cotta into the cup, and added another layer of Cocoa Powder. I refrigerated for about 2-5 hours, and to tell the truth, it tasted great.
