Cocoa and chocolate have different jobs
Cocoa supplies a concentrated chocolate flavour without much added fat, while melted chocolate gives a rounder finish. Sweetened condensed milk provides the sweetness, so a dark chocolate around the middle of the cocoa-percentage range works well. A very bitter bar makes a more intense dessert.
Sifting cocoa removes firm lumps before they meet the thick condensed milk. Add the condensed milk gradually rather than pouring everything together and hoping a whisk will find every pocket. This is the main opportunity to make the chocolate base smooth.
Cool the chocolate mixture properly
Warm chocolate cream would melt some of the air structure in the whipped cream. It should feel cool before folding, but not be a hard refrigerated lump. A shallow bowl helps it cool evenly.
If the chocolate mixture has become too firm to fold, let it stand briefly and stir, rather than heating it strongly. The first spoonful of whipped cream is meant to loosen it so the rest can be incorporated without force.
Do not overwhip
Soft peaks are enough. Very stiff cream can remain in white flecks through the chocolate mixture, encouraging extra stirring that removes air. Stop whisking while the cream still looks smooth and flexible.
Scrape the bottom of the bowl during folding because the chocolate base is heavier. Even colour is the useful stopping point. The final mixture should look uniformly chocolatey without a dense layer beneath it.
What you'll need
- 300 ml cold double cream, divided
- 200 g sweetened condensed milk
- 30 g unsweetened cocoa powder
- 50 g dark chocolate, finely chopped
- ½ tsp vanilla extract
Let's make it
- Reserve 60 ml of the cream. Heat it gently until steaming, remove from the heat and stir in chopped chocolate until melted. Cool completely.
- Sift cocoa into a bowl. Stir in the condensed milk gradually, pressing out dry pockets to make a smooth chocolate mixture.
- Stir cooled melted chocolate and vanilla into the cocoa mixture. If it feels warm, chill it before proceeding.
- Whip the remaining 240 ml cold cream to soft peaks. Fold one spoonful into the chocolate base, then gently fold the loosened base into the remaining cream.
- Transfer to a covered freezer-safe container, smooth the surface and freeze at least 8 hours until firm.
- Scoop after a brief softening period if needed. Return the container to the freezer promptly.
Make it your own
Omit the chopped chocolate for a simpler cocoa-only version, using all the cream for whipping; the finish will differ.
A little finely grated orange zest can be folded in, avoiding the bitter white pith.
Keeping it fresh
Freeze covered at about −18°C and use within one month for best quality. Label the container.
Do not return melted portions to the frozen batch. Keep serving time short and use a clean scoop.
Allergen notes
Contains milk. Dark chocolate may contain soya or additional milk; check labels.
