i made a potatoe cheese bake and it went wrong
okay
greased up dish
slice potatoes
slice onion
grate loads of cheese
black pepper
thyme
sage
layer ingredients and pour over 1/2 pint of milk and bake 45 mins
okay i checked it and all was well , so took the lid off and browned it
when i cut into it the cheese had like curdled and stuff ( bolox)
what did i do wrong