Ingredients

2 cups zucchini, shredded
1 1/2 cups sugar
3/4 cup canola oil
2 teaspoons vanilla extract
2 cups flour
1/3 cup cocoa
1 1/2 teaspoons baking soda
1 teaspoon salt
1/2 cup walnuts, chopped (optional)

Frosting

1/4 cup butter
1 cup sugar
1/4 cup milk
1/2 cup semi-sweet chocolate chips
1/2 cup miniature marshmallow
1 teaspoon vanilla extract
1/2 cup walnuts, chopped (optional)

Directions

Combine zucchini, sugar and oil. Add dry ingredients and mix well.

Pour into a greased 9x13 pan and bake at 350 to 350°F for 35-40 minutes.

Cool 30 minutes.

For frosting, melt butter in a saucepan on medium heat.

Stir in sugar and milk, and bring to a boil, stirring frequently.

Boil and stir 1 minute, then remove from heat.

Stir in chocolate chips and marshmallows until melted.

Add vanilla and quickly spread over brownies.

Sprinkle with walnuts if desired.