1 tsp salt
3 Tbsp butter
salt & pepper, to taste
Top, tail and peel the carrots & turnips. Chop and then wash them.
Place the carrots & turnips in a large saucepan adding enough water to cover them completely. Add the salt and bring to a boil.
Cover the pan, turn down the heat and simmer for 15-20 mins until cooked (soft).
Drain off the water, add the butter and still over a low heat, mash the mixture well.
Season liberally with salt & pepper and serve.
Prepare & freeze the mash while the vegetables are fresh; defrost before re-heating for 1-2 mins in the microwave.