Mama's Room nyc.com

 
 

SERVES 12 -24 , 24 regular and 12 mini muffins (change servings and units)

Ingredients 1/2 cup softened butter
1 cup sugar
2 oranges, zest of, grated
2 eggs
1/2 cup orange juice (no pulp is best)
1 teaspoon baking powder
1/2 teaspoon baking soda
2 cups flour
1 1/3 cups good dark chocolate chips
1/2 cup sour cream

Directions
1 Preheat oven to 350, have eggs at room temperature Cream butter and sugar in a mixing bowl until light and fluffy. Add the eggs and mix on medium until incorporated.
2 Add grated orange zest, flour, baking soda, baking powder and sour cream, mix inches Add orange juice and chocolate chips, mix on low for about 30-45 seconds, until mixed well.
3 Fill greased muffin pan cups a little more than half full, bake at 350 for 12 min or more, until cake tester comes out clean - depends on your oven, should be between 12 and 15 minutes; mine usually takes 13 minutes
(original source Recipe Zaar)