Mixed Berry Charlotte

In a saucepan, whisk together the milk, cornstarch, sweetened condensed milk, lemon zest, and egg yolks

Cook the mixture over low heat, stirring constantly, until it comes to a boil

Remove from heat and continue to stir for 3 more minutes, let the cream cool slightly (become lukewarm)

Bloom the unflavored gelatin powder with water and microwave for a few seconds until completely dissolved

Whisk the dissolved gelatin into the lukewarm cream mixture

Beat the whipped topping mix according to package directions, adding the vanilla extract

Line the bottom and sides of a springform pan with ladyfingers

Place a layer of the store-bought cake slices on the bottom and drizzle with orange juice

Alternate layers of the cream mixture, whipped topping, mixed berries, and ladyfingers/cake, finishing with a layer of mixed berries

Refrigerate for at least 4 hours to set