Foryoueats: Blueberry Cake

Ingredients

• 1/2 cup(113g, 1 stick) unsalted butter, softened, plus more for buttering the pan
• 1 cup (130g) all-purpose flour plus 1 teaspoon flour, divided
• 1 teaspoon baking powder
• 1/2 teaspoon salt (omit if using salted butter)
• 1/8 teaspoon cinnamon
• 3/4 cup (160g) sugar
• 1/4 teaspoon vanilla extract
• 2 large eggs
• 1 teaspoon lemon zest, optional
• 2 cups (325g) blueberries, rinsed, drained, and patted very dry (if using frozen blueberries, thaw and drain first)
• 1 teaspoon lemon juice
• Powdered sugar for dusting