Green Tea Cake with Adzuki Cream

The cake has been assembled! I finished making my matcha and red bean cake.

The cake part of this cake is a matcha sponge cake that I cooked in a jellyroll pan and then sliced into quarters. The filling is a sweetened whip cream with red bean paste. For those of you unfamiliar with red bean paste, or adzuki paste, it is made with cooked red beans, sugar, a pinch of salt, and a small amount of shortening for texture purposes. The beans are mashed and strained to remove hard bits and pieces of skin, and then it is all mixed together and simmered until thick. It is little labor intensive to make, but if you can't find it at your local store it's better to make it yourself I think than trying to buy it online. Plus then you have the added comfort of knowing the proportions of ingredients in your bean paste and having it be fresh and delicious and not taste like can!

So I made the bean paste early in the day because it takes HOURS to cook the beans. I then made the sponge cake and allowed it to cool. I whipped up the cream, added some sugar (not too much because the bean paste is sweet too) and then mixed in some bean paste until I liked the color. The recipe said 4 tbsp, but I might have put in up to twice that. Just taste it and stop adding when you like the flavor. I slathered the whipped cream mixture between the layers, stacked them up and then coated the whole thing. I put it in the fridge then to allow it all to set up a little. After dinner I made some gunpowder green tea and cut up the cake. I recommend using a bread knife and being delicate about cutting because if you're not you will squish out a lot of the filling and it just won't look very nice. Favorite had been questioning my judgement of mixing red bean paste with the green tea cake, but one bite changed that: "This is insanely delicious!!" So, we drank a whole pot of tea and ate more than half the cake in about 10 minutes.

I had seen this cake before and searched high and low on the internet for a recipe (had I known the filling was just whipped cream and bean paste I could have winged it, but I didn't). A lot of what I found was the green tea cake with chocolate. I didn't want to do that because it seemed to me the chocolate would overwhelm the delicate flavor of the matcha. The only version of this cake I could find was one for a jellyroll, but obviously the change in structure didn't hurt the tastiness of the cake. Here is the recipe for anyone else out there having a hard time locating one:

Matcha Cake with Adzuki Cream

Ingredients:

• 3 eggs, separated
• 1 cup sugar
• 1/3 cup water
• ½ tsp vanilla
• 1 tsp matcha powder
• ¾ cup flour
• 1 tsp. baking powder
• ¼ tsp salt
• powdered sugar
• 1 cup cream
• sugar to taste
• 4 tbsp red bean paste

Directions:

1. Preheat oven to 375
2. Grease parchment cut to fit jelly roll pan.
3. Beat egg yolks and ¾ cup of the sugar.
4. Add vanilla, water, and match powder at low speed.
5. In separate bowl beat egg whites with a pinch of salt.
6. Beat ¼ cup of sugar into egg whites until firm peaks form.
7. Mix flour, baking powder and salt in separate bowl.
8. Gradually add dry mix to yolk mixture.
9. Fold half of meringue into yolk mix until smooth.
10. Carefully fold in remaining meringue.
11. Pour batter into jelly roll pan and bake for 8-15 minutes.
12. Turn cake onto wax paper dusted with powdered sugar and peel off backing parchment.
13. Allow cake to cool.
14. Whip cream and add sugar to taste.
15. Add bean paste.
16. Spread whipped mixture onto cooled cake and cut and stack layers until desired size.
17. Serve immediately or refrigerate.