Line a 12-cup muffin tin with paper liners or lightly coat the cups with non-stick spray.
In a large mixing bowl whisk together the oil, egg, sugar, yogurt, orange zest, orange juice, and vanilla.
Next, add the flour, salt, and baking powder. Stir just until combined. Stir in the chocolate chips. The batter will be slightly thick.
Using an ice cream scoop, spoon, or measuring cup, fill each muffin cup about ⅔ to ¾ full with the batter. This recipe makes 12 muffins.
Mix the second half of the orange zest with the sugar. Use your fingers or a fork to release the oils. Sprinkle the orange sugar over the tops of the muffins.
Bake muffins in a 350-degree oven for 16 – 20 minutes, or until a toothpick comes out clean when inserted in the middle of one of the muffins.
Cool slightly. Enjoy!
Notes
If you don’t have enough orange juice from your orange(s), add a little milk to the juice to equal ½ cupThis recipe makes 12 muffins.