Fresh Berry Tart with Toasted Nut Crust - Oryana

Ingredients

• ¼ cup each almonds, pecans, and hazelnuts
• ¾ cup whole-wheat flour
• ¼ cup sugar
• ¼ teaspoon sea salt
• 6 tablespoons chilled butter, diced
• 1 large egg yolk
• ½ cup sour cream
• ½ cup plain Greek yogurt
• 2 tablespoons light brown sugar
• 1 teaspoon vanilla extract
• ¼ teaspoon grated orange zest
• 1 cup blueberries
• 1 cup raspberries
• 1 tablespoon orange juice