Hungry Note

In Japan, we call this cake as "Sweet Potato" pronounced as "Su i to po te to".
This is very common in Japan, you can find the one in patisserie or even in supermarket.
I used to buy it, because nothing is easier than making own cake with risk... And it costs no more than $2 so.
You will taste full of sweet potato, creamy and moist, flavor of vanilla hit your taste buds.
Smoothness is just like a custard.
I promise that you will be buying sweet potato just for make "Japanese Sweet Potato Cake".

ingredient(Large size for 4 pcs / Small size for 8 pcs)

250g Sweet Potato(skin peeled)
35ml Fresh Cream
40g Icing Sugar
15g Unsalted Butter
1 egg yolk
few drops of Vanilla Essence

1, Peel the skin of sweet potato and cut into about 5mm thick disc then put them into the pot with boiling water
probably for 4mins to 6mins until its cooked.(you can check with sticking skewer through the sweet potato)

2, Drain the sweet potato and put them back to the pot with lower heat.
Mash them in the pot and mix it for couple mins to let some moisture escape.
Add butter, and then icing sugar, then gradually add fresh cream.
Remove the pot from the heat, then add 1/2 amount of egg yolk then vanilla essence and mix.

3, Let the mixture cool down a bit.
You can shape them into any shape you like, and place them on baking tray.
If the mixture is too soft to shape, don't worry, You can simply spoon the mixture into little mould.
Brush remaining egg yolk on top.

4, Preheat oven to 220C.(Convenient oven works well too)
Bake them for 15 ~ 20minutes.
I believe it taste way nice after chilled for couple hours.

This recipe can be doubled.