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Step 1: Measure the Dry Ingredients
In a small bowl, whisk together the cocoa powder, caster sugar and cornflour until no lumps remain. Sifting the cocoa first helps, since it clumps easily and lumps are much harder to smooth out once liquid is added. Set this dry mix aside within reach of the stove.
Step 2: Make a Cocoa Paste
Splash 60ml (1/4 cup) of the milk into the dry mix and whisk into a smooth, thick paste with no dry pockets. Building the paste before adding the rest of the milk is the single biggest trick for lump-free hot chocolate. It should look like glossy chocolate frosting at this stage.
Step 3: Warm the Remaining Milk and Cream
Pour the remaining milk and the double cream into a heavy-based saucepan set over medium-low heat. Warm gently for 2-3 minutes, stirring occasionally, until steam rises and small bubbles form at the edge of the pan, but do not let it boil.
Step 4: Whisk the Paste into the Warm Milk
Pour the cocoa paste into the warm milk in a steady stream while whisking constantly. Whisk for about 30 seconds until the mixture is a uniform light brown with no streaks of paste visible.
Step 5: Add the Salt
Whisk in the pinch of salt now, while the mixture is still thin enough to combine easily. Salt sharpens the chocolate flavour and stops the drink tasting flat or one-note.
Step 6: Bring to a Gentle Simmer
Keep the heat at medium-low and let the mixture come up to a gentle simmer, around 80°C (176°F), which takes 3-4 minutes. You want lazy bubbles just breaking the surface at the edges, never a rolling boil.
Step 7: Add the Chopped Chocolate
Scatter the chopped dark chocolate into the pan a handful at a time, whisking between additions so each batch melts before the next goes in. This takes about 2 minutes total and gives the drink its glossy, rich body.
Step 8: Whisk Until Fully Smooth
Whisk continuously for another 1-2 minutes until the surface looks completely smooth and slightly thickened, with no visible flecks of chocolate. The mixture should coat the back of a spoon lightly.
Step 9: Check the Consistency
Dip a spoon in and run a finger across the back; the line should hold briefly rather than vanish instantly. If it feels too thick, whisk in a splash more warm milk; if too thin, simmer for another minute, whisking often.
Step 10: Stir in the Vanilla
Remove the pan from direct heat for a moment and stir in the vanilla extract. Adding it off the heat protects its aroma, which cooks off quickly if left simmering.
Step 11: Taste and Adjust
Taste a small spoonful once it has cooled slightly and adjust with an extra teaspoon of sugar if you prefer it sweeter, or a touch more chopped chocolate for a deeper flavour. Whisk in any additions for 20-30 seconds to fully combine.
Step 12: Warm the Mugs
While the hot chocolate finishes, rinse your serving mugs with hot tap water and tip out. Warmed mugs keep the drink hotter for longer and stop the first sip losing all its heat to a cold ceramic wall.
Step 13: Froth the Top
Give the pan one final vigorous whisk for 15-20 seconds, or blitz briefly with a milk frother, to build a light foam layer on the surface. This step is what makes stovetop hot chocolate feel cafe-style rather than flat.
Step 14: Pour into the Mugs
Pour immediately into the warmed mugs, filling to about 1cm (0.4in) below the rim to leave room for toppings. Divide evenly between mugs so each serving gets a fair share of the foam.
Step 15: Top and Serve
Finish each mug with mini marshmallows or a swirl of whipped cream and a light dusting of cocoa powder if you like. Serve straight away while the drink is at its hottest and the foam is still sitting proud on top.
Pro Tips for Perfect Stovetop Hot Chocolate
Use a heavy-based pan rather than a thin one, as it spreads heat evenly and stops the cocoa catching on the bottom. Keep the heat at medium-low the whole time; hot chocolate that boils hard tends to split the fats and turn grainy instead of smooth. A mix of cocoa powder and chopped chocolate gives the best of both worlds, with the cocoa carrying deep flavour and the chocolate adding body and shine. Always whisk rather than stir, since the extra agitation dissolves the cocoa fully and builds a light foam on top.
Make It Ahead and Batch Tips
The base can be made up to 4 days ahead and kept in a sealed jar in the fridge, then reheated gently in a pan over low heat while whisking so it doesn't split. For a party, double or triple the recipe in a large pot and hold it on the lowest simmer, whisking every 10 minutes so a skin doesn't form. If it thickens too much on standing, whisk in a splash of warm milk until it loosens back to a pourable consistency. Freeze leftover cocoa base in an ice cube tray for up to 2 months, then melt a few cubes into a mug of warm milk for a quick single serving.
Learn how to make silky hot chocolate recipes stovetop with real cocoa, melted chocolate and warm milk in just 15 minutes. For more hot chocolate recipes inspiration, browse the full Hot Chocolate Recipes board — every idea there is written for real home kitchens, not professional bakers.
Frequently Asked Questions
The best method is to whisk cocoa powder into a small amount of milk first to form a smooth paste, then gradually whisk in the rest of the warm milk before melting in chopped chocolate. Keeping the heat at medium-low and whisking constantly prevents lumps and stops the milk catching on the base of the pan. Adding a splash of cream and a pinch of salt rounds out the flavour and gives a richer, silkier texture than water alone. This method takes about 15 minutes from start to finish and produces a noticeably smoother drink than mixing a sachet with hot water.
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