Wash and trim the rhubarb and chop it into small pieces (2 cm). Put it in an oven tray. Sprinkle with the sugar.
300 g rhubarb, 30 g caster sugar
Cover the tray with foil and bake for 15 minutes at 180°C / 350°F. This will make the rhubarb soften slightly, without making it too mushy. Leave the rhubarb to cool for 10 minutes.
Measure out oats, ground cinnamon, ground ginger, baking powder and place them in a large mixing bowl. Mix to combine.
200 g oats, 1 tsp ground cinnamon, ½ tsp ground ginger, 2 tsp baking powder
Mash the banana and add it to the bowl. Add the honey, eggs and milk. Mix well.
1 banana, 2 tbsp honey, 2 eggs, 250 ml milk
Add half the rhubarb chunks and mix (reserve the rest to put on top).
Spoon the oat mixture into an oven-safe dish and top with the rest of the rhubarb chunks.
Bake for 25-28 minutes at 180°C / 350°F until golden on top and set in the centre. Allow to cool for 5 minutes then serve warm.