Zucchini Brownies

1 cup butter, softened
1 1/2 cups sugar
2 eggs
1/2 cup plain yogurt
1 tea. vanilla
2 1/2 cups flour
1/4 cup baking cocoa
1 tea. baking soda
1/2 tea. salt
2 cups shredded zucchini

Frosting:
2/3 cup chocolate chips
1/2 cup peanut butter

In a large bowl, cream butter and sugar. Add eggs, beating well. Beat in yogurt and vanilla. Combine dry ingredients; gradually add to creamed mix. Fold in zucchini.

Pour into greased 9x13 pan. Bake at 350 degrees for 35-40 min.

For frosting: combine choc. chips and peanut butter in saucepan. Cook and stir over low heat until smooth. Spread over warm brownies.

about 1 1/2 dozen