Steps:

• In a large bowl, mix 1/2 the onions, 1/2 the garlic, and 1/2 the oil. Pour into a shallow, rimmed pan (12 by 15 in. to 15 by 17 in., and 1 to 1 1/2 in. deep). Repeat with remaining onions, garlic, and oil, and pour into another same-size pan.
• Bake in a 400° oven until onions are limp and well browned, 1 to 1 1/2 hours, switching pan positions and stirring mixture from pan sides into center with a wide spatula every 15 minutes to avoid scorching or burning.
• Use as directed in recipes. Or let cool to room temperature and freeze in 1-cup portions in plastic freezer bags (1-pt. size; see Cold Facts below).
• Cold Facts. Packaging: freezer bags. If ingredients include liquid, set each plastic freezer bag upright in a bowl, then fill. Squeeze out all air and seal bag. For better protection of frozen foods during storage, seal each bag inside a second one. Lay bags flat in freezer until solid so they will stack.
• Note: Nutritional analysis is per cup.

Steps:

• Place potatoes, unpeeled, in a saucepan with water to cover and salt.
• Cook potatoes until tender, about 20 minutes. Drain and let cool. When cool enough to handle, peel them. Cut potatoes into 1/4-inch slices.
• Heat oil in a nonstick skillet large enough to hold potatoes in one layer. When oil is quite hot, add potatoes. Cook over high heat, shaking skillet and stirring gently, until lightly browned. Turn potatoes with a spatula. Cook for a few minutes more until light brown.
• Drain excess fat from skillet and add onion. Cook a few minutes until onion is lightly browned. Add butter, garlic, salt and pepper. Toss and blend well. Sprinkle with parsley and serve immediately.