Peel 750g of White Potatoes, before chopping them into manageable pieces around 4cm (1½ inches) squared, and giving them a good rinse in the colander
Place the chopped spuds in medium sized saucepan and completely cover with cold water
Add 1 sprig of fresh Rosemary and half a teaspoon of salt. Then place on a medium heat and bring to the boil
Simmer the pot for around 20 minutes, until the weight of a sharp knife, blade pointed downwards will cause a potato to break in half
While its boiling away, peel, crush, and finely chop 6 cloves of Garlic, and place them in a small saucepan along with 75g of Butter. Then set aside until the potatoes have softened sufficiently
Once the potatoes are ready, strain them in the colander, and leave them for a minute or so for the water to evaporate. In addition, completely empty and dry the pan
While waiting, place the garlic and butter on a medium heat and fry until the butter has completely melted and the garlic has browned a little. Then add 75g of Heavy Cream, 75g of Milk, 30g of Dijon Mustard, 2g of Black Pepper, and 6g of Salt, then bring to the boil and immediately turn off the heat
Return the boiled potatoes to the original medium sized pan, and crush them quickly with the potato masher. Before pouring in the garlic/butter/cream/mustard sauce, along with 30g of finely chopped chives and giving the whole lot a good pounding
When the ingredients have been fully incorporated, proudly serve alongside your previously prepared food thing. Or, alternatively, use it for whatever sordid mashed-potato based activities you had in mind