LONDON — There’s a lot of wrapping up going on at this time of the year. Presents get wrapped up for gift-giving. The year gets wrapped up in advance of a new one just around the corner. (Even our bodies get wrapped up as the temperature drops.)

Whatever we’re wrapping up, for ourselves or others, the elements of anticipation, surprise, comfort and hope all play key roles.

There’s a lot of consuming at the end of the year, too: food, drink, time, energy. In our mad pursuit to see nearly everyone in our address books, we do a lot of running around, a lot of sitting around, a lot of eating and a lot of drinking.



Any dessert arriving on the scene, therefore, needs to work that much harder to gain a piece of everyone’s attention and appetite, and to deliver on hopes that it will be both comforting and delicious. If it can actually be wrapped up and then unveiled as a surprise, then that’s brilliant. If it can be inverted onto a platter before serving — what ceremony! — then all the better.

A lemony sponge cake is the perfect thing. Wrapping a cake with parchment paper and foil before it gets its long, slow bake ensures not only the “ta-da!” element once it’s revealed, but also the retention of flavor and moisture within the cake when it’s served.

The addition of the lemons — squeezed into the maple butter and sliced into thin rounds and charred for the top layer of the cake — pulls the whole thing back from the brink of being too intense, waking up the palate for the next bite.

These little rounds of charred lemon also feel like sunshine to me, rays of the golden stuff signaling fresh hope and life for the new year — the new decade — once this year, finally, gets wrapped up.

Upside-Down Lemon Sponge Cake With Lemon-Maple Butter

Yield: 8 servings

Total time: 1 3/4 hours

Ingredients:

For the sponge cake:

3 medium lemons

1/2 cup plus 3 tablespoons/165 milliliters maple syrup

1 vanilla bean (pod)

1 3/4 cups/225 grams all-purpose (plain) flour

2 teaspoons baking powder

1/4 teaspoon kosher salt

1 cup/225 grams unsalted butter (2 sticks), cut into small cubes and at room temperature

3 large eggs plus 1 large egg yolk

1 packed cup/220 grams soft light brown sugar

1/4 cup/60 milliliters whole milk

1 cup/240 grams crème fraîche, for serving

For the lemon-maple butter:

3 tablespoons/45 milliliters lemon juice (from 1 to 2 lemons)

1/2 cup/120 milliliters maple syrup

7 tablespoons/100 grams unsalted butter, cut into small cubes and refrigerated

Preparation:

1. Heat the oven to 325 degrees Fahrenheit

2. Trim the 3 lemons, slicing and discarding the tips, then cut each lemon into very thin (1/10-inch/1/4-centimeter-thick) rounds to get 24 slices; discard the seeds (pips). Place a large nonstick skillet over high heat. Working in about three batches, add lemon slices in a single layer and cook until nicely charred on both sides, 1 to 2 minutes per side. Repeat with the remaining slices and set aside.

3. Line a baking dish about 8-by-12 inches/20-by-30 centimeters in size with a piece of parchment paper large enough to cover the base and sides, and enough overhang to later fold over the batter. Pour 1/2 cup/120 milliliters maple syrup into the prepared dish. Halve the vanilla bean (pod) lengthwise, scrape the seeds into a small bowl, then add the scraped-out halves to the prepared dish. Top with the charred lemon slices, spreading out so they cover the entire base while overlapping slightly in spots.

4. Sift the flour, baking powder and salt into the bowl of a stand mixer fitted with the whisk attachment, and mix on medium speed to combine. Add the room-temperature butter, eggs and egg yolk, brown sugar, milk, reserved vanilla seeds and the remaining 3 tablespoons maple syrup, and mix on medium-low speed for 2 minutes until combined. The mixture will look like it’s split a little with some smaller cubes of butter, but that’s OK.

5. Spoon the mixture into a piping bag or resealable plastic bag, snipping the base, and pipe the mixture directly on top of the lemons in the baking dish in an even layer (this ensures the lemons don’t move around too much). Using the back of a spoon, smooth over the mixture to create an even layer. Fold over the excess parchment paper to cover, then wrap the dish tightly in foil.

6. Place the baking dish into a larger roasting pan (tin) that is roughly 10-by-14 inches/24-by-36 centimeters. Carefully add about 1 inch/3 centimeters boiling water to the pan, transfer to the oven and bake until a toothpick inserted into the center comes out clean, about 60 minutes. Lift the baking dish from the water, remove the foil, and unwrap the parchment paper. Set aside for 5 minutes before carefully inverting the whole thing onto a platter, carefully removing the parchment paper to expose the lemons.

7. During the last 10 minutes of baking, prepare the lemon-maple butter: Add the lemon juice and maple syrup to a small saucepan and bring to a simmer over medium-high heat. Cook for about 2 minutes, then turn the heat down to low. Once the mixture is no longer simmering, gradually whisk in the chilled butter a little at a time until you have an emulsified sauce.

8. Drizzle half the lemon-maple butter all over the warm sponge cake and serve warm, with the remaining lemon-maple butter and crème fraîche alongside.

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