Prepare the Biscuit Rims: Place the crushed digestive biscuits on a small, flat plate. Pour the chocolate sauce or melted chocolate onto another small plate. Take your two favourite mugs, turn them upside down, and dip the rim of each mug first into the chocolate, then into the biscuit crumbs, rotating to get an even coating. Set them aside.

Warm the Milk: In a medium saucepan, gently heat the milk over a medium-low heat. Be careful not to let it boil; you're just looking for it to get warm, with small bubbles forming at the edges.

Create the Cocoa Base: Whisk the sifted cocoa powder, caster sugar, and pinch of salt into the warm milk until fully dissolved. Continue to whisk as you add the finely chopped dark chocolate.

Simmer and Thicken: Keep the saucepan over a medium-low heat, stirring constantly for about 3-4 minutes, until all the chocolate is melted and the mixture is completely smooth and slightly thickened. Stir in the vanilla extract, then remove from the heat.

Whip the S'mores Topping: While the cocoa is resting, pour the cold double cream into a mixing bowl. Using an electric hand mixer, whip the cream until soft peaks form. Add the marshmallow fluff and continue to whip for another minute until the mixture is thick, glossy, and holds stiff peaks. I find that an electric mixer is essential here to get the right airy texture.

Assemble the Drink: Carefully pour the hot cocoa into your prepared mugs, leaving a couple of inches of space at the top. Spoon or pipe generous dollops of the whipped marshmallow cream on top of the hot cocoa.

Toast the Topping: This is the fun part! Using a kitchen blowtorch, carefully toast the top of the marshmallow cream until it's golden brown and lightly caramelised. Alternatively, you can place the mugs on a baking sheet and pop them under a hot grill for 30-60 seconds. Watch them like a hawk as they can burn very quickly!

Garnish and Serve Immediately: Sprinkle with a few extra biscuit crumbs or some mini marshmallows if you wish. Serve your Smores Whipped Hot Cocoa Delight straight away while it's warm and the topping is at its best.