meyer lemon and fresh cranberry scones

INGREDIENTS

• 1 1/2 tablespoons freshly grated lemon zest (from about 2 lemons; preferably Meyer)
• 2 1/2 cups all-purpose flour
• 1/2 cup sugar plus 3 tablespoons additional if using fresh cranberries
• 1 tablespoon baking powder
• 1/2 teaspoon salt
• 3/4 stick (6 tablespoons) cold unsalted butter, cut into bits
• 1 1/4 cups fresh cranberries, chopped coarse, or 1 1/4 cups dried cranberries, if you insist
• 1 large egg
• 1 large egg yolk
• 1 cup heavy cream