I might have asked this prev.
But I am struggling to make really good crunchy potatoes.
I do this..
Knob of butter and veg oil about 2 tablespoons.
par boil pots toss in pan and douse in salt
get fat hot in oven
put pots in fat and in oven for time needed to get brown.
now they are coming out greasy and not as crunchy as they should be.
Also the tin....I think tainted pots as old metal tin...so bought new one
but is there a bestest tin to use too...