Turn the oven to 200 degrees.

Peel and rinse vegetables and cut them into cubes.

Put the vegetables in a frosted plastic bag. Add the oil.

Shake the bag so that the oil is distributed.

Take 2 pieces of baking paper and spread the vegetables on both pieces of paper.

Peel and squeeze the garlic and spread on the 2 portions of vegetables

Collect the baking paper as a small bag with the vegetables in. Close with cotton string so that air cannot penetrate

Place the bags on a baking sheet

Bake them in the oven for approx. 30 minutes. Check that the vegetables are tender by pricking them

Heat the milk in the microwave or in a saucepan.

Mash the baked vegetables with a mashed potato or food processor. Add milk until the bog has a suitable consistency.

Taste the bog with a little salt and possibly. a little more milk.