Chocolate Zucchini Muffins - cooking recipe

Ingredients

1/2 cup milk
1/4 teaspoon white vinegar
1/2 cup butter, room temperature (1 stick)
1/2 cup vegetable oil (I use grapeseed oil for an added health bonus)
1 3/4 cups sugar
2 eggs
2 teaspoons pure vanilla extract
2 1/2 cups all-purpose flour
4 tablespoons cocoa powder
1 teaspoon baking soda
1/2 teaspoon cinnamon
1/2 teaspoon salt
2 cups zucchini, peeled and finely grated (about 3 small zukes)
1 cup chocolate chips
1/4 cup chopped pecans (optional) or 1/4 cup walnuts (optional)

Preparation

Preheat oven to 325. Line 2 standard muffin pans with muffin papers.
Mix together the milk and vinegar and set aside.
In a large bowl, beat together the butter, oil and sugar until creamy. Add eggs, vanilla extract and milk/vinegar mix. Blend well.
In a separate bowl, mix together flour, cocoa powder, baking soda, cinnamon and salt. Add to the butter mixture and stir by hand to combine.
Add grated zucchini and half the chocolate chips and stir well.
Spoon the batter evenly into the pans, filling each cup 2/3 full. Sprinkle the other half of the chocolate chips and nuts (if using) on top and bake for about 20 minutes until a toothpick inserted in the center comes out clean or the muffins spring back when lightly touched.