lemon pound cake recipe

**Ingredients:** - 1 1/2 cups all-purpose flour - 1 teaspoon baking powder - 1/2 teaspoon salt - 1 cup unsalted butter, softened - 1 cup granulated sugar - 4 large eggs - 2 tablespoons lemon zest (from about 2 lemons) - 1/4 cup fresh lemon juice - 1 teaspoon vanilla extract - 1/2 cup whole milk