Inside measurement of baking tray 36.5 cm x 25.5cm × 2.5cm / 14.4''× 10'' × 0.1'' • ■Matcha Sponge Cake(35×24cm / 13.8 × 9.4 in) • ・ 4 eggs (LL size) • ・ 85g (3 oz, 2/5 cup) granulated sugar • ・ 12g (2.5 Tbsp) matcha powder • ・ 15g (1.3 Tbsp) granulated sugar (for matcha) • ・ 3 Tbsp hot water • ・ 50g (1/5 cup) milk • ・ 70g (3/5 cup) cake flour • ■ ''KOSHI-AN'' paste • ・ 200g (7 oz, 1.5 cup) KOSHI-AN • ・ 2 Tbsp milk •