Sweet Berry Lasagna 🍓Creamy red berry lasagna in 10 minutes

Ingredients for 20 x 27 cm mold:

450 g mixed frozen berries
30 g cornstarch (1/4 cup)
50 g sugar (1/4 cup)
2 eggs
400g sour cream (1 2/3 cups)
500ml milk (2 1/8 cups)
140 g sugar (2/3 cups)
50 g cornstarch (1/3 cup)
1/2 vanilla bean
(unfortunately I didn't have one, that's why you can't see it on the video)

6 lasagne sheets,
Powdered sugar for dusting