Preheat the oven to 200C/400F/Gas 6.
For the cinnamon toast, place the cream, eggs, sugar and cinnamon into a bowl and whisk to combine.
Dip the bread slices into the cream mixture until thoroughly soaked.
Melt the butter in a large frying pan and fry the bread for 2-3 minutes on each side, or until golden-brown. Set aside to keep warm.
For the yoghurt, place the yoghurt and honey into a bowl and mix well.
For the rhubarb, place the chopped rhubarb into a small ovenproof frying pan and sprinkle with the sugar. Cook over a medium heat for 2-3 minutes, then transfer to the oven and bake for 10-12 minutes.
To serve, place the toast onto a serving plate along with the roasted rhubarb and the yoghurt.