Nippon Memories Spice Cake

STEP 1: ROAST THE PLUMS

Heat the oven to 400°F (200°C). Halve and pit the plums, then set two halves aside for later — these stay raw. Toss the remaining plums with the light brown sugar, the scraped vanilla seeds and the pod, the strip of lemon zest and the pinch of salt. Spread them cut side up in a single layer on a rimmed sheet pan, giving each half room; crowded fruit steams instead of roasting, and that is what produced the original fault. Roast 25–30 minutes, until the edges have caught colour and the juices are bubbling and darkened. Do not stir.

STEP 2: REDUCE THE JUICES SEPARATELY

Tip the plums into a bowl, holding back the liquid, and pour the juices into a small saucepan. Boil hard for 3–5 minutes until reduced to a scant ¼ cup of glossy syrup. Fold it back through the fruit with the lemon juice and the eau-de-vie, if using. This is the step that separates plum flavour from plum liquid: boiling the fruit in its own juice drives the aromatics off while leaving the acid behind, which is exactly the sharp-but-hollow result the judges described. Reducing the liquid on its own concentrates both.

STEP 3: FINISH THE COMPOTE WITH RAW FRUIT

Chop the two reserved raw plum halves finely, toss them with a pinch of the light brown sugar and leave them to macerate. Stir the raw fruit into the compote once it is off the heat and cooled to warm. Cooked plum gives depth; raw plum gives the bright top note that reads as plum immediately. Cool completely — the compote keeps improving for a day.

STEP 4: PREPARE THE PAN AND THE DRY INGREDIENTS

Reduce the oven to 325°F (165°C). Grease the loaf pan and line it with a parchment sling overhanging the long sides. Whisk together the flour, baking soda, baking powder, ground ginger, cinnamon, allspice, cloves, nutmeg, black pepper and fine sea salt.

STEP 5: BUILD THE BATTER

Beat the butter, oil and dark brown sugar together until light, about 3 minutes. Beat in the molasses, then the eggs one at a time, then the grated fresh ginger and the vanilla. The mixture may look curdled; the flour will bring it back. Add the dry ingredients in three additions alternating with the buttermilk in two, beginning and ending with dry, and mix only until the last streaks disappear. Toss the chopped stem ginger in a tablespoon of the dry mixture so it does not sink, then fold it in by hand.

STEP 6: BAKE TO TEMPERATURE, NOT TO THE CLOCK

Scrape the batter into the pan and level the top. Bake 55–65 minutes, beginning to check the core at 50 minutes. The loaf is done at 200–205°F (93–96°C), at which point a skewer comes out with a few moist crumbs clinging to it. That is the target. A skewer that emerges clean and bone-dry means the loaf has gone several minutes too far, and those minutes are the whole difference between a crumb that yields to the knife and one that does not. If the top is darkening quickly at 40 minutes, tent it loosely with foil rather than lowering the heat.

STEP 7: SOAK WHILE HOT

Warm the ginger liqueur with the granulated sugar until the sugar dissolves. The moment the loaf comes out of the oven, brush the soak over the hot top, going back over it two or three times as it disappears. Hot crumb absorbs; cool crumb repels. Leave the loaf in the pan for 15 minutes, then lift it out by the sling onto a wire rack and cool completely, at least 1½ hours.

STEP 8: MAKE THE GINGER GLAZE

Grate the ginger root finely, gather the pulp in a square of muslin or a fine-mesh sieve and press firmly to extract 1 tablespoon of juice. Whisk it into the sifted confectioners' sugar with the ginger liqueur and the pinch of salt, then add cream half a teaspoon at a time until the glaze falls from the whisk in a thick, slow ribbon. Use ginger juice rather than more ground ginger here: the juice carries the volatile heat, where ground spice at this stage would only add dustiness.

STEP 9: GLAZE AND FINISH

Set the cooled loaf on the rack over a sheet pan. Pour the glaze along the centre spine and let it spread under its own weight, nudging it to within ½ inch of the edges and encouraging a few deliberate drips down the sides. Scatter the ginger matchsticks along the centre while the glaze is tacky and add a small pinch of flaky sea salt. Leave 30 minutes to set before slicing with a long, warm, dry knife. Serve each slice with a spoonful of the compote alongside rather than on top, so the acidity meets the cake on the palate rather than soaking into it.