Oprah's Onion and Thyme Tart

My garden in being over run with Thyme... So I started digging up recipes that use fresh thyme. This is one of them!! This looks very 'rustic' makes rolling out and etc much easier!

• Ready In: 1 hr 30 mins
• Serves: 4

Ingredients

• 2 1⁄2 cups flour
• 1  cup unsalted butter, cut into small pieces
• 1  teaspoon kosher salt
• 1  teaspoon sugar
• 4 -6  tablespoons  ice water
• 1  egg yolk
• 1  tablespoon heavy cream
• 2  tablespoons olive oil
• 1  tablespoon unsalted butter
• 3  large  vidalia onions, thinly sliced
• 1  tablespoon thyme
• 1  teaspoon kosher salt
• 1 -2  teaspoon black pepper

Directions

1. In a food processor, combine flour, butter, salt and sugar; pulse until if forms coarse meal. continue pulsing and add water 1 tbls at a time, until meal moistens into dough. Form dough into disc; wrap in plastic.
2. Refrigerate at least 30 minutes.
3. Meanwhile, in a large saute pan over med flame, heat oil and butter. Once hot, add onions; cook slowly until golden brown, about 25 minutes. Stir in thyme, salt and pepper. Set aside.
4. Preheat oven to 375 degrees. Roll out dough on a floured piece of parchment into 14 to 15 inch circle (doesn't have to be exact!).
5. Place cooled onion mixture in center, fold over edges about 2 inches. In a small bowl, combine egg yolk and heavy cream; brush mixture over edges of dough. Bake until golden brown, 20 to 25 minutes. Serve warm.