Roasted potatoes with lemon

This is simple, and often impresses people beyond all reason. The original recipe was from a book I got from a Greek market in Worcester, but that one called for inordinate amounts of butter which ended up giving the whole thing a soapy flavor, so I changed it. They go nicely with any sort of roasted meat, but it would be a shame if that meat were anything other than lamb. The "it would be a shame if you did anything other than what I do" line I got from Marcella Hazan's cookbooks, great recipes but an imperious tone.

The roasted potatoes

enough olive oil to cover the bottom of a roasting pan
6-8 potatoes, the small to medium type are best
juice of one lemon
salt and pepper
enough broth to almost cover the potatoes (from kockice is fine, I like Knorr's vegetable kockice)

Cut up the potatoes any way you like, thick slices or wedges are best. Put them in an oiled roasting pan.
Pour the lemon juice over them, sprinkle them with salt and pepper. Pour the broth over that.
Put them in the oven and roast them with whatever meat you are roasting, about 90 minutes.

That is really all! Simple and transcendent.