To serve 4 people:
4 big carrots, peeled
2 potatoes - Agrias have a nice texture and colour, though I like the taste of Nadine potatoes.
50g butter
Seasoning
Peel and cut the potatoes and start off by boiling them in a little salted water.
Cut the carrots length wise in quarters and the chop them in pieces (about 5mm). Add to the potatoes.
Boil until tender.
When done, take the pot off the stove. Drain some of the water if there is too much liquid left - you need only enough to make mashed potatoes. (I guess that would be about half a cup.)
Add butter and mash the potatoes (with the carrots as part of the mixture). The aim is just to mash the potatoes and not the carrots. Season to taste.