Custard Mochi Lemon Flavour 168g (9 ratings) Custard Mochi Lemon Flavour 168g £2.70 Out of stock. 0 in your basket View Basket Checkout Mochi is a Japanese rice cake that can have different sweet fillings. These unique mochis are not filled with bean paste or jam such as is usually the case with mochis. They’re filled with custard! Ingredients: maltose, sticky rice, water, sugar, thickener: E1442, cream, lemon powder, trehalose, white chocolate, palm oil, flavouring, salt, food colouring: E160a, emollient: E471, preservative E202, potato starch.