Basil Sugar Pound Cakes From Thalia Ho

Name: Basil Sugar Pound Cakes From Thalia Ho
Ingredients: Cakes; 1 1/2 cups (190 grams) all-purpose flour; 3/4 teaspoon baking powder; 1/4 teaspoon fine salt; 3/4 cup (1½ sticks/170 grams) unsalted butter, softened; 1 1/4 cups (250 grams) granulated sugar; 3 large eggs; 1 teaspoon vanilla extract; Zest of 1 large lemon; 1/3 cup plus 1½ tablespoons (100 milliliters) buttermilk; Basil Sugar; 1/2 cup (100 grams) granulated sugar; 1/4 cup (10 grams) packed basil leaves; Zest of ½ large lemon