pour all water out of pan, let them steam dry for few seconds and then add some flour to pan and shake them (with lid on) to roughen up the edges
or pour water out and do nothing
then place in a roasting tin, already hot and containing oil (veg oil perfectly ok) with some thyme or sage or any dried herb you have to hand that youd like really. Spoon the oil so that all are covered
Cook for 45 mins or until crispy and golden. spooning the oil over them halfway through cooking time
wash well, peel, rinse very well again (get rid of the starch), parboil (say 10 mins) then shake up in the pan with the lid on so the surface of each potato is nice and irregular. Have preheated oven (v. hot) with preheated tin and oil (goose fat for best result- sunflower oil will do if not- olive oil won't get them as crispy. Pour them to the tin and shake them gently (no need to spoon fat onto the top. Shove them in oven and turn them half way through. 40 minjs should do it. Crispy on the outside, light and fluffy in the middle. Yum!
Oh and you can put different things in the tray too like rosemary/garlic/orange/lemon zest etc etc. (or if you're roasting a bird you can lay them around it to absorb the fat but be careful as they can go soggy.
Allowing for difering tastes and language, here in the U.S., we do this often:
3 lbs. sm. red skinned new potatoes
3/4 c. unsalted butter
1/2 c. lemon juice
1 1/2 tsp. lemon zest, grated
2 tsp. rosemary (fresh if available)
Salt and pepper
Preheat oven to 375 F. degrees. Quarter potatoes and arrange in baking dish in single layer. Salt and pepper potatoes. Combine butter, lemon juice and lemon zest in a saucepan and heat until butter is melted.
Pour mixture over potatoes. Sprinkle rosemary over potatoes. Bake until lightly browned for 30 to 45 minutes.
For 30 years I've always done my own but every now and again I use Aunt Bessies frozen roast potatoes & I've been very impressed.
I've never used goose fat but parboiled the potatoes, drain & then place the lid on the pan & give it a shake to roughen up the edges.
I then throw them into a baking tray that's hot with oil and then roast them
I always parboiled mine and once, I must have brought a different type of potato, after the customary 15 minutes of parboiling they'd all turned to mush.
It wasn't even mash.
Maris Piper is the best potato for roasties , par boil , drain them off , give them a good rattle in the saucepan , in to the oven in hot goose fat for 30 mins + , let me know when you are cooking these I will be there !! Enjoy !!!