Rhubarb and apple crumble

Ingredients

 * 4 apples
 * a bunch of rhubarb
 * a small amount of water
 * -optional: a little brown sugar to taste

Directions
4 apples and a bunch of rhubarb - cut up and simmer in a little water -optional a little brown sugar to taste (if using granny smith apples you might need sugar, if using red apples maybe not)


 * Source: facebook group