In a bowl mix together the oats, honey, vanilla and oil. Spread the sticky oats on a baking tray and bake for 5 - 10 minutes. Checking every 3 minutes and stirring, making sure the all oats are turning a nice golden colour.
Whilst the oats are baking, slice up the rhubarb into bite sized pieces and put in a non stick pan. Sprinkle over the sugar and cook on a low heat, stirring frequently, so the rhubarb softens. (Takes around 5 minutes).
Once cooked place your rhubarb into a serving bowl and sprinkle over a generous helping of the honey baked oats.
Quickly, lets make the custard and then you are ready to enjoy! Heat the milk, maple syrup and vanilla in a pan until almost boiling.
Beat the eggs together with the cornflour in a separate bowl or jug and pour over the hot milk mixture.7. Whisk well and then pour the mixture back in to the pan and put back on the heat. Gently heat through until the mixture thickens.
Pour the lovely custard back in to the separate bowl or jug and strain through a sieve to remove any lumps. Pour it all over your healthier rhubarb crumble and enjoy.
Recipe by Cook Bake Eat at https://www.cookbakeeat.com/healthier-rhubarb-crumble-skinny-custard-recipe/