4 potatoes, 1 lemon, 1 bulb of garlic, mustard, olive oil, salt, pepper.
2) Roast a bulb of garlic for half an hour, then squeeze the pureed garlic from the clove skins. Stir a teaspoon of grainy mustard into the garlic and set aside.
3) Scoop the potato from the skins (if you want to set the skins aside, these are fabulous to re-bake, stuffed!) and mash/blend with the garlic and mustard.
4) Zest and juice 1 lemon and add to the potato along with 2 tablespoons of olive oil. Mix thoroughly, season with salt and pepper and serve.