Zucchini-Chocolate Chip Muffins

1 ½ cups all-purpose flour

¾ cup white sugar

1 teaspoon baking soda

1 teaspoon ground cinnamon

½ teaspoon salt

1 egg, lightly beaten

½ cup vegetable oil

¼ cup milk

1 tablespoon lemon juice

1 teaspoon vanilla extract

1 cup shredded zucchini

½ cup miniature semisweet chocolate chips

½ cup chopped walnuts

Preheat oven to 350 degrees F (175 degrees C). Grease 12 muffin cups, or line with paper muffin liners.

Combine flour, sugar, baking soda, cinnamon, and salt in a large bowl. Mix egg, oil, milk, lemon juice, and vanilla extract in a bowl; stir into dry ingredients until just moistened. Fold in zucchini, chocolate chips, and walnuts. Fill prepared muffin cups 2/3 full.

Bake in preheated oven until a toothpick inserted into the center of a muffin comes out clean, 20 to 25 minutes.