In a mixer, put 2 packs of table cream and 1 packet of juice powder, whip for 1 minute. Use a spatula to release any powder stuck to the edges of the mixer and whip for another minute.
Pour it into a glass dish, spread well and keep it in the fridge.
Repeat the same process with the other flavor of juice powder.
Pour this second layer into the glass dish, spread well and let it chill in the fridge for 15 minutes.