Peanut Butter Chocolate Chip Zucchini Cake

Peanut Butter Chocolate Chip Zucchini Cake
Ingredients:
1 1/2 cups shredded zucchini
1 1/2 cups all-purpose flour
1/2 teaspoon baking powder
1/2 teaspoon baking soda
1/4 teaspoon salt
1/2 cup unsalted butter, softened
1/2 cup creamy peanut butter
1 cup granulated sugar
2 large eggs
1 teaspoon vanilla extract
1 cup semi-sweet chocolate chips
1/2 cup chopped walnuts (optional)
1 cup peanut butter frosting (store-bought or homemade)
Additional chocolate chips for garnish
Directions:
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