1Prepare your favorite pie crust or use the above. Combine all ingredients for pastry into a food processor and pulse to combine.Knead on floured board and roll into ball ...chill for one hour.Roll out and cut into 3 inch circles and fit into mini -muffin pan. Set aside.
2Heat olive oil in a large skillet over medium heat. Add onions, sprinkle with salt and cook stirring occasionally until deep golden brown. Set aside.
3Whisk together the whipping cream and egg. Season with s & p. Set aside.
Combine caramelized onions, olives, herbs, balsamic vinegar and cheese in a bowl. Divide the onion mixture between tart shells and pour a scant tablespoon of cream mixture over top. bake at 375 for for 14 - 18 minutes until golden and baked through.So yummy!!