Here is also a dish completely from childhood. It does not require complex products, and almost no work - mixed and cooled!
In advance, at least 1 hour (up to 24 hours), soak the raisins in rum. If there is no time at all, pour the raisins with rum in a microwave-safe dish, cover and microwave at full power for 1.5 minutes, then cool.
Soak the gelatin in a little cold water for 10 minutes. Mix all the sugar (brown and vanilla) with the cream in a saucepan. Bring almost to a boil, remove from heat and stir until the sugar dissolves.
Add gelatin to sweet cream (if using sheet, squeeze it out). Stir until the gelatin is completely dissolved. Cool, but do not let the gelatin harden.
Beat sour cream with a mixer until fluffy. Whisking constantly, pour in the sweet cream with gelatin.
Add raisins, gently mix with a spatula from the bottom up and arrange in glasses or bowls. Refrigerate until firm, 3-4 hours. Serve cold.