Melt Cadbury Bournville in a microwave for 30-40 seconds.
Fill melted cadbury bournville in a heart shaped mould.
Rotate the mould and remove any excess chocolate. Refrigerate for 8-10 minutes. Repeat the process.
Add egg yolk and oil in a bowl. Mix well.
Heat heavy cream in a pan, add egg yolk and oil mixture. Cook over low flame whisking continuously.
Add cadbury dairy milk bournville in a bowl and melt it in a microwave.
Add egg and cream mixture to melted cadbury and mix well.
Add whipped cream and mix well.
Demould chocolate heart carefully.
Pipe the mousse inside the cup.
Garnish with strawberry, red currants and mint leaves.