Double Lemon Poppy Seed Muffins

Ingredients (12)

• 1/2 cup + 1 tablespoon pure cane sugar
• 2 medium lemons, preferably organic (you’ll need the zest of both and the juice of one)
• 1 1/2 cups white whole wheat flour or regular whole wheat flour
• 1/4 cup poppy seeds
• 1 1/2 teaspoon baking powder
• 1/4 teaspoon baking soda
• 1/2 teaspoon fine-grain sea salt
• 5 tablespoons unsalted butter, melted and cooled
• 3/4 cup plain yogurt (plain Greek yogurt works, too)
• 1 large egg (update 3/20/14: use 2 eggs for richer and slightly fluffier, more cupcake-like muffins)
• 1 teaspoon vanilla extract
• 2 teaspoons turbinado sugar for sprinkling on top