To make Rhubarb Compote, place rhubarb, raspberries, sugar and vanilla bean into Thermomix bowl and cook 15 min/100°C/Reverse/speed 1. Cool completely.
To make Lemon Pudding, place sugar and lemon zest into clean, dry Thermomix bowl and mill 15 sec/speed 10.
Add remaining ingredients and cook 8 min/80°C/Butterfly/speed 4.
Cook 2 min/90°C/Butterfly/speed 4. Cool to just warm before proceeding.
Place a few spoonfuls of Rhubarb Compote into the base of a small glass or serving bowl. Top with Lemon Pudding and refrigerate until ready to serve. Dollop with a little mascarpone or double cream to serve.