Rhubarb crumble bars

Rhubarb crumble bars

  • Vegetarian

  • Makes14
  • CourseSnack
  • Prepare20 mins
  • Cook1 hr 20 mins
  • Total time1 hr 40 mins
  • 400g forced rhubarb, chopped into small pieces
  • 100g caster sugar
  • 200g butter
  • 200g plain flour
  • 170g soft light brown sugar
  • 1 tsp ground ginger
  • 30g rolled oats
  • 1 medium Waitrose British Blacktail Free Range Egg, yolk only