Ingredients
Scale
- ½ cup unsalted butter at room temperature (4 oz | 113 g)
- Zest from a large lemon
- 1 cup sugar (reserve 1 tablespoon for topping)
- 1 egg at room temperature
- 1 teaspoon vanilla extract
- 2 cups all-purpose flour (256 g, keep 1/4 cup aside for coating the blueberries)
- 2 teaspoons baking powder
- 1 teaspoon kosher salt (use 1.25 teaspoons if desired)
- 2 cups fresh blueberries
- ½ cup buttermilk