Rustic Peach Blueberry Cobbler: Easy, Juicy

Ingredients

• 4 cups (600g) fresh peaches, peeled and sliced (about 4 medium peaches)
• 1 ½ cups (225g) fresh blueberries
• ¾ cup (150g) granulated sugar
• 2 tablespoons (15g) cornstarch
• 1 teaspoon fresh lemon juice
• ½ teaspoon ground cinnamon
• ¼ teaspoon salt
• 1 cup (125g) all-purpose flour, sifted
• ⅓ cup (67g) granulated sugar
• 1 ½ teaspoons baking powder
• 6 tablespoons (85g) unsalted cold butter, cut into small cubes
• ⅓ cup (80ml) whole milk (or buttermilk for extra tang)
• 1 large egg, lightly beaten (for brushing the topping)