Blueberry Breakfast Cake | Umami

Ingredients

• 2 cups fresh blueberries
• 2 cups all-purpose flour, divided
• 1 cup sugar, plus 1 tablespoon
• 1 large egg, room temperature
• 1/2 cup buttermilk
• 1/2 cup (1 stick) unsalted butter, softened
• 2 tablespoons lemon zest
• 2 teaspoons baking powder
• 1 1/2 teaspoon vanilla extract
• 1 teaspoon salt
• 1/2 teaspoon cinnamon, optional