Tiramisu cake | Transcription of Yu sweets researcher's recipe

Use scissors to remove the seam of the milk carton and cut it to a width of about 1 cm.
Make two cuts 2 to 3 mm deeper than the width of the castella.
Fold the cut part inward, make a half cut in the outer part from the bottom, make a half cut in the inner part from the top, and align the cuts.
Fold the innermost milk carton outward.
Make two cuts diagonally from the top of the milk carton on the outermost side, and insert the stuff you just folded in.

Put the coffee stick in the vat and pour hot water to dissolve it.
Add castella and press lightly to let it soak in.
Pour into mold 1.

Put the room temperature cream cheese in a bowl and mix with a mixer.
Add vanilla ice cream and mix well.

3をザルで濾しながら1の型に流し入れる。
1で切り取った牛乳パックを蓋のようにして被せ、冷凍庫に半日～1日ほど置いておく。

冷凍庫から取り出し、型から外す。
常温で30分か、冷蔵庫で1時間ほど置き、柔らかくなったら包丁で切り、ココアを振りかけ、完成。