* Exported from MasterCook Mac * Horseradish Mashed Potatoes with Caramelized Onions Recipe By : Bon Appetit Magazine, Nov 1997 Serving Size : 1 Preparation Time :0:00 Categories : Potatoes Amount Measure Ingredient -- Preparation Method -------- ------------ -------------------------------- 1/4 c Butter -- +6 tb, divided 2 1/4 lb Vidalia onions -- thinly sliced 3 tb Balsamic vinegar 2 ts Fresh thyme -- chopped 3 1/2 lb Russet potatoes -- peeled, - cut in 1" pieces 6 tb Whole milk -- up to 8 tb 1/4 c Horseradish Melt 1/4 cup butter in large skillet over medium heat. Add onions; saute until deep golden, about 30 minutes. Add vinegar and thyme. Reduce heat to low; saute 4 minutes. Season with salt and pepper. Meanwhile, cook potatoes in large pot of boiling salted water until very tender; about 20 minutes. Drain. Return to same pot; mash until smooth. Add 6 tb milk, horseradish, and 6 tb butter; stir to blend. Thin with 2 tb milk if necessary. Season with salt and pepper. Transfer potatoes to serving dish. Spoon onion mixture atop potatoes. (Can be prepared 8 hours ahead. Cover with foil and refrigerate. Rewarm in 350 F oven about 30 minutes.) Serve hot. - - - - - - - - - - - - - - - - - -