Layers of tender sponge cake and pumpkin mousse, topped with a crispy nest of honey coated crispy sweet potato. An easy fall dessert that looks beautiful.

Someone once told me that “you can tell a baker and a chef apart by whether they measure things or not”. I fit squarely into the second category, and until I started developing recipes for other people, my measuring cups sat idle in the back of my cupboard. It’s not that I have anything against precision. I just don’t like feeling constrained by rules.

Sadly, when it comes to baking you can’t go adding more leavening after the cake fails to rise, so you have one shot to get it right. That’s why I don’t bake much, and I’m perfectly pleased with leaving pastry in the hands of a practiced pâtissier. Besides, the whole “science of baking” thing runs contrary to my no recipe credo and I have a brand to uphold… right?

As it turns out, Project Food Blog has me reaching well outside my comfort zone once again, because Challenge #8 is all about baking. And not just any kind of baking… leave it to good ‘ole Foodbuzz to toss a baking challenge using “pumpkin” towards this recipe-shy blogger.

My first inclination was to do a pumpkin pie, since there is no need for the filling to miraculously rise, and pie crust is something that I can actually bake without evoking the Holy Spirit. The problem is, I really dislike pumpkin pie. I’ve tried everything from turning it into a cheesecake, to making it a custard and brûléeing the top, but it’s just not something I’m very fond of. Call me ethical, but publishing a dish I don’t love seemed wrong.

Part of my problem with pumpkin pie is with the pumpkin. After years of denial, I’m finally coming to terms with the fact that I just don’t like run-of-the-mill varieties of pumpkin very much. Kabocha (which literally means “pumpkin” in Japanese), on the the other hand, is a breed of pumpkin I can get behind. With jade green skin and firm orange flesh, Kabocha is like a love-child of a butternut squash and sweet potato. In Japan, it’s mainly used in savory dishes, but the sweet starchy flesh is perfectly suited to make an appearance in a dessert.

Because I didn’t see the point in reinventing the wheel, I borrowed a sponge cake recipe from the lovely Helene at Tartelette, who is my go-to blog for all things pastry. In between the tender genoise, I layered on a pumpkin mousse that I made with honey poached kabocha. To finish the cake, I drew a little inspiration from a scene outside: a swirly gust of wind picking up a pile of fallen leaves and carrying them down the block. My interpretation? A nest of crispy, honey coated sweet potato laced with black sesame seeds, arranged as though they might be whirling down the road.

This cake is the embodiment of fall, using seasonal ingredients like kabocha and satsuma imo, which carry the nutty flavors of the season, juxtaposed by the crispy texture of “fallen leaves” in each bite. I know it sounds rather complicated, but it’s not as hard as you’d think. Check out the video below if you don’t believe me:-)


  • 18 ″ 13″ x jelly roll panko bread crumbs
  • potato ricer (or fine mesh sieve)
  • parchment paper
  • 2 1/2″ ring mold

Pumpkin Honey Mousse CakeLayers of tender sponge cake and pumpkin mousse, topped with a crispy nest of honey coated crispy sweet potato. An easy fall dessert that looks beautiful.


  • CourseDessert
  • CuisineFrench
  • Yield0
  • Cooking Time0 minutes
  • Preperation Time0 minutes
  • Total Time0 minutes


3 large
3 large
egg yolks
3/4 cup
sugar 150g
1/8 teaspoon
1/2 cup
cake flour 70g
1/4 cup
cornstarch 30g


  1. Setup a double boiler with a pot large enough to hold your mixing bowl then bring the water to a simmer. Move your oven rack to the middle position and preheat to 400 degrees Prep an 18″ x 13″ jelly roll pan by lining it with parchment paper, then buttering the parchment paper.
  2. Put the eggs, yolks, sugar and salt in a metal mixing bowl and whisk to combine. Put the bowl on your double boiler and whisk, heating until the mixture reaches 100 degrees F (luke warm). Mount the bowl on a mixer and beat on high with the whisk attachment for 5 minutes. The volume will triple and pale yellow ribbons of egg will flow off the whisk when they’re ready.
  3. Sift together the flour and cornstarch. When the egg mixture is ready, add 1/3 of the flour mixture into the eggs and gently fold together the flour and eggs. Repeat twice more, folding between each addition until you don’t see any more clumps of flour. Pour the batter into the prepared baking sheet, and smooth off the top (a pastry knife or a clean plastic ruler works great for this). Bake for 7-8 minutes or until a toothpick comes out clean. Let the genoise cool on a rack. (adapted from Tartelette)