Goat Cheese Tart with Caramelized Onions and Wild Blueberries

Ingredients

• 3 cups flour
• 1 tablespoon sesame seeds
• 1 tablespoon black onion seeds
• 1 tablespoon freeze dried parsley
• 1 3/4 sticks unsalted butter, or margarine, cut into pieces
• 1/2 teaspoon salt
• 5-6 ounces cold water
• 1 small red onion, finely chopped
• 2 tablespoons virgin olive oil
• 2 tablespoons sugar
• 1 tablespoon balsamic vinegar
• 3/4 cup frozen Wild Blueberries
• 7 oz firm goat cheese, crumbled
• 1 egg
• 3 egg yolks
• salt
• freshly ground pepper
• 1 1/4 cup whole milk
• 1/2 cup frozen Wild Blueberries
• generous sprig fresh tarragon or parsley, chopped