The secret to the sparkling flavor of these delicately crumbed muffins is the strips of lemon zest finely ground into the sugar. Enjoy the muffins warm right from the oven.
Make Ahead Tip: Wrap each in plastic and freeze in a freezer bag for up to 1 month. To reheat, remove plastic, wrap muffin in a paper towel and microwave on High for 30 to 60 seconds.