Potato and Caramelized Onion Gratin
Timing an elaborate meal is tricky, but we have a tasty cheat for mashed potatoes: Transform them into a gratin by spreading caramelized onions over them and topping with cheese….
Instructions
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1
With the rack in the middle position, preheat the oven to 400°F (200°C).
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2
In a large skillet over medium heat, soften the onions in the butter, stirring frequently, for about 20 minutes or until they begin to caramelize.
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3
Add the wine and tomato paste. Continue cooking, while stirring, until the wine has completely evaporated. Season with salt and pepper. Transfer to a 12-inch (30 cm) round baking dish.
Timing an elaborate meal is tricky, but we have a tasty cheat for mashed potatoes: Transform them into a gratin by spreading caramelized onions over them and topping with cheese. Prepare the day before and slide into the oven for a few minutes before serving. Our prediction? This super side dish will steal the spotlight.
