Strawberry Rhubarb Crostata – In The Curious Kitchen

Ingredients

• 3 sticks of cold butter, cut into cubes
• 1 and 3/4 cup all purpose flour
• 1/2 teaspoon Kosher salt
• 1/2 cup ice cold buttermilk, use full fat for the richest flavor
• 1 pint fresh strawberries, capped and sliced
• 2 cups chopped Rhubarb, 1/4” pieces
• 1/2 cup sugar
• 3 and 1/2 tablespoons cornstarch
• 2 teaspoons freshly squeezed lemon juice
• 1/2 teaspoon vanilla
• 1 egg, whisked