Chocolate Orange Muffins

I was up early this morning in time to make these deadly chocolate orange muffins for breakfast. The wife and kids will follow their noses downstairs this morning for sure.
Sift together:

2 ½ cups flour
¾ cup sugar
½ tsp salt
4 tsp baking powder

Set aside.

Whisk together

2 eggs
1 cup milk
1/2 cup cooking oil
Zest of one orange, finely grated
1 tsp vanilla extract

Blend in the dry ingredients, just until the dry ingredients are incorporated into the batter; do not over mix. Fold in:

¾ cup dark chocolate chips

Spoon batter into 12 well greased muffin tins. Bake for 15 minutes at 400 degrees F, then reduce the heat to 350 degrees F and bake for an additional 10 minutes or until a toothpick inserted in the center comes out clean.