Double Chocolate Zucchini Muffins

Name: Double Chocolate Zucchini Muffins
Prep time: 10 min
Cook time: 16 min
Total time: 26 min
Cuisine: American
Ingredients: 2 large eggs; 1/3 cup (60g) canola oil (or other neutral oil); 1/2 cup (90g) brown sugar, packed; 1 cup (220g) plain Greek yogurt I use 2%; 1/4 cup milk (or milk of choice); 1 tsp vanilla extract; 1 1/3 cup (160g) whole wheat flour; 1/2 cup (50g) cocoa powder; 2 tsp baking powder; 1/2 tsp baking soda; 1 tsp instant espresso or coffee (optional, helps enhance chocolate flavour); 1/2 tsp salt; 1 medium zucchini (about 1 1/4 cup) finely grated; 1/3 cup (55g) white chocolate chips