Ingredients:

• 1/2 cup (113g) unsalted butter, at room temperature
• 1/3 cup (67g) granulated sugar
• 1/3 cup (67g) light brown sugar
• 3 large eggs, at room temperature
• 1 1/2 teaspoons vanilla extract
• 1 1/4 cup (150g) all-purpose flour
• 3/4 teaspoon kosher salt
• 1/2 teaspoon baking powder
• 1/4 teaspoon cinnamon
• 3 cups (about 480g) mixed berries
• Turbinado sugar, for sprinkling
• Powdered sugar, for dusting, optional