1
Preheat oven at 375ºF (190ºC).
2
In a medium bowl, sift together flours, sugar, cocoa and baking soda.
3
In a large bowl, combine juice, water, oil, vinegar, vanilla, orange extract and orange zest.
4
Gradually add dry ingredients to wet ingredients; stir until just moistened.
5
Fold in chocolate chips.
6
Spray 12 medium muffin cups or use paper liners
7
Fill the cups half way.
8
Bake for 13-16 minutes or until toothpick comes out clean.
9
Top with orange rind curl (optional)
10
Cool for 5 minutes before removing from pan.