Peel potatoes, cut into large pieces and cook until tender in salted water.
Onions cut arbitrarily, but not large.
Fry onions in butter, over medium heat. Take one spoon from the total. After two or three minutes, add the garlic finely chopped.
Strongly to fry onion not need to, he should be slightly Golden and transparent. In the process to add a spoonful or two of potato broth, salt (you can lightly pepper optional) and bring the bow up and ready.
With potatoes drain water. Potatoes to turn into mashed potatoes, crushing with a potato masher.
Heat milk to hot.
Onion turn into a puree in a convenient way. I used the coffee grinder.
To connect with potato and onion puree.
Beat with a mixer with a nozzle "corollas", all well mixed.No immersion blenders!! otherwise, do not get mashed and putty!
Next, add two tablespoons of soft butter, add salt if necessary and pour the milk. Milk to take the taste depends on what consistency you want to puree. All at once should not be poured!
And again beat into a soft mousse, it's okay combining.
Here is such puree is obtained.
Use the amount of oil to your liking.
Instead of milk, you can use potato broth. This puree will be no worse, and will be stored longer! Well, if you take the cream, the puree will be just gorgeous!
Serve immediately, garnish with your favorite chopped herbs!