Lemon Poppy Seed Muffins

Name: Lemon Poppy Seed Muffins
Ingredients: 1 3/4 cups all-purpose flour; 1 teaspoon baking powder; 1 teaspoon baking soda; 1/2 pound unsalted butter; 3/4 cup plus one tablespoon sugar; 3 eggs; 8 ounces sour cream; 1/3 cup poppy seeds; 3 tablespoons grated lemon zest; 1/2 cup each freshly squeezed lemon juice and sugar for glaze; 1 tablespoon vanilla extract