Preheat the oven to 180 C (350 F) and butter a medium sized ceramic oven dish with butter.: Warmth fills the kitchen as the oven comes up to temperature, a gentle hum that signals the start. You want the oven steady at 180 C 350 F so the pudding rises evenly, creating a tender crumb with a thin crust on top that traps moisture. Buttering the dish prevents sticking and adds a hint of toasted butter flavor to the edges. A common mistake is putting a cold oven dish in a hot oven, which can alter bake time and texture, so preheat first. Visually, look for a consistently warm interior once it reaches temp, not just hot air exiting the door.
Using an electric mixer, beat the egg and sugar on high for about 5 minutes until pale and fluffy.: You will hear the mixer change pitch as air is incorporated and see the egg and sugar lighten to a pale ribbon stage, which is crucial for lift. The mixture should be thick enough that when you lift the beaters the batter falls slowly, leaving a trail. This aeration creates the sponge structure, and if you underbeat it, the pudding will be dense. Overbeating once other ingredients are added can collapse the air, so stop at the right tactile cue, not a timer alone.
In a separate bowl sift or whisk the flour, cocoa and bicarb of soda together.: The dry mix should smell faintly of chocolate and have an even, powdery texture. Sifting removes lumps from the flour and cocoa , which ensures a uniform crumb. The bicarb of soda will distribute evenly to give predictable rise. If you skip this step, pockets of baking soda can create uneven flavor and texture, so take a moment to whisk thoroughly.
Melt the butter in the microwave and then add the vinegar and add that to the batter.: The melted Lurpak butter will radiate a toasted aroma, and when you whisk in the white vinegar , you are setting up a chemical reaction with the baking soda that helps tenderize the sponge. Add the warm butter slowly to the pale batter to preserve the air you just whipped in. If the butter is too hot it can cook the egg , so allow cooling to warm, not hot. The batter should feel smooth and glossy after incorporation.
whilst the mixer is still going alternate between adding the flour/cocoa and the milk in parts until it’s well combined: You will sense the batter transition from airy to a cohesive, pourable texture as you alternate additions. Adding the dry mix and milk in parts preserves aeration and avoids lumping. The bowl will warm slightly from mixing and develop a gentle chocolate aroma. The batter should be smooth and homogenous; if you see streaks, keep folding gently. A typical error is dumping everything at once which can deflate the batter and produce a heavy result.
Pour the batter into a greased baking dish approx. 20 cm in diameter (glass Pyrex or ceramic works well).: The batter should settle with a glossy top and small air bubbles visible. A 20 cm dish gives the pudding the right depth to bake through without drying out. Using glass or ceramic helps maintain even heat distribution and a gentle rise. If you pour into a dish that is too shallow, the pudding can overbrown before the center sets, so choose the correct size.
Spray the one side of a piece of foil well with baking spray, cover the pudding properly and bake for 45 minutes.: Covering the dish traps steam and protects the top while the interior cooks, keeping it moist. The foil should be spray coated so it does not stick to the pudding surface. Baking for 45 minutes produces a set yet tender center; you will notice the aroma of chocolate intensify in the kitchen. Avoid opening the oven frequently, which can drop the temperature and affect rise.
The pudding is ready when it has risen and is springy to the touch.: Press gently in the center and feel a resilient spring, with the surface returning slowly. Visual cues include a slight pull away from the dish edges and a uniformly set top. The smell should be a concentrated chocolate butter aroma. If it feels too soft, give it a few more minutes, but avoid overbaking which dries the sponge; a little wobble is preferable to dryness.
While the Malva pudding is baking, make the chocolate sauce. Place all the ingredients into a double boiler or in a bowl over a small pot of boiling water and stir until the sugar has dissolved and the chocolate melted. You should have a smooth warm sauce.: Warm steam and a gentle bubbling sound will accompany the transformation as the cream , sugar , and dark chocolate meld into a glossy sauce. Stir continuously so the chocolate melts evenly and the sugar dissolves, producing a smooth texture. Using a double boiler avoids scorching and preserves a silky mouthfeel. If the sauce appears grainy, keep stirring over low heat until smooth; overheating can separate the fats and ruin the texture.
As soon as the malva pudding comes out the oven, pour over 3/4 of the sauce. It will seem like a lot but it does soak in. Reserve the rest to serve warm with the pudding.: The pudding should be hot and steaming when you pour the warm sauce so it soaks in, creating a molten interior and glossy top. You will hear a soft sizzle as the warm sauce hits the hot pudding, and that steam brings out the chocolate aroma. Reserve some sauce to serve for added richness. A common oversight is waiting for the pudding to cool, which prevents proper absorption and leaves the top dry instead of indulgently moist.
Serve chocolate Malva with vanilla ice cream or fresh whipped cream.: Serve while still warm so the contrast between the spoonable pudding and cold accompaniment is at its best. The cream or ice cream provides a cooling counterpoint to the rich chocolate sauce, enhancing the overall experience. Plate portions with a bit of reserved sauce for shine. If you let the pudding sit too long, the sauce will firm up and the contrast will be lost, so time serving to enjoy it while it is at peak warmth.