Preheat oven to fan forced 175ºC and butter a loose bottomed flan tin.
To make pastry, place butter into Thermomix bowl and melt for 4 min/60ºC/speed 1.
Add icing sugar, vanilla and flour and mix 20 sec/Interval.dough setting until it resembles wet crumbs.
Push into flan tin and bake for 15 minutes or until golden and puffed up. Cool.
Without cleaning bowl, insert Butterfly and place caster sugar and eggs into bowl and beat 4 min/37ºC/speed 3.
Meanwhile, brown the butter by heating it in a light coloured saucepan on Induction 5-6, stirring occasionally until it turns a nutty brown colour. Do not over brown, err on the side of not brown enough. It will smell very fragrant and delicious, without any overtones of burnt! Set aside to cool.
Complete the filling mixture by adding flour and vanilla to Thermomix bowl and mixing 20 sec/speed 4 until well blended. Remove Butterfly before adding browned butter through hole in lid 30 sec/speed 3.
Sprinkle cooked and cooled pastry base with cherries, spread filling topping over, using spatula to even out if necessary and then bake 20-25 minutes until puffed and golden. Serve with whipped cream or ice cream.
Serve cold for best presentation.