Set Global Sun Oven out to preheat.
Put butter, oil, onions, and some salt in a heavy dark pot. Place covered pot in Sun Oven, focused to keep the temperature at around 200º, until the onions are very soft, about one hour.
Uncover pot. Focus Sun Oven directly towards sun. Prop open door to allow moisture to escape, and continue cooking until the onions turn a deep, dark gold color.
Remove pot from GSO and finish cooking the sauce on the stove. Over medium-high heat add the wine, salt and pepper to taste, stir and continue cooking until the wine evaporates, about 5 minutes.
Remove from heat and stir in parsley.
Toss with cooked drained pasta and the grated Parmesan cheese.
This Sun Oven Smothered Onion Sauce recipe is from the Sun Oven Cooking Cookbook. Download this Cookbook today.
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