Browned Onion With Potatoes

This is a quick and easy recipe I found in a cookbook dedicated to potatoes, Company's Coming "The Potato Book". I have made a caramelized onion and potato flan, and a fried potato with caramelized onion dish, and they were both big hits. So I decided to try this recipe too, which is a bit different because the potatoes are mashed. Essentially, this is just a dish of mashed potatoes to which caramelized onions are added. The onions are caramelized in a frying pan, and then stirred into the mashed potatoes. This would be extra good if you added some mushrooms along with the onions, and if you really want to make it special, stir in a little cream cheese or sour cream with the potatoes. 

Browned Onion With Potatoes
4 medium white potatoes, peeled
water
2 small onions, sliced into thin rings
1 Tablespoon olive oil
2 Tablespoons margarine or butter
1/3 cup milk
salt, pepper, and any other seasonings, to taste

Boil the potatoes in water in a medium saucepan until tender. 
Meanwhile, heat the oil and one of the tablespoons of margarine in a large frying pan over medium heat. Add the onions and sautee, stirring occasionally, until nicely browned and caramelized, about 15-20 minutes. The heat may be turned down if onion becomes too brown. 
Once tender, drain and mash the potatoes with the remaining margarine, milk, and seasonings. Stir in the onions. This can be kept warm in the pot for up to 20 minutes until diner is ready.

Paré, Jean. "Browned Onion With Potatoes." Recipe. The Potato Book, Edmonton Alberta: Company's Coming Publishing Limited, 2004. 106.