While the cakes are baking, bring the reserved carrot juice and orange juice to a boil in a saucepan.
6. Thickening the Cream
In a separate bowl, combine the tapioca starch (or rice flour), cold water, and egg yolk. Slowly pour this mixture into the simmering juice, stirring constantly. Simmer for 5 minutes, or until the cream thickens. Sweeten to taste and let cool.
7. Assemble the Cake
Once the cakes and cream have cooled, spread the cream between the cake layers and on top. Garnish with nuts or your favorite toppings and enjoy the unique flavor of this delicious cake!
