Zucchini Walnut Pancakes

Name: Zucchini Walnut Pancakes
Ingredients: 1 1/2 cups (170g) white whole wheat flour; 1/4 cup (50g) granulated sugar; 2 teaspoon baking powder; 1 teaspoon ground cinnamon; 1/2 teaspoon kosher salt; 1 cup (227g) buttermilk; 1/4 cup (50g) extra virgin olive oil; 1 large egg; 1 teaspoon vanilla extract; 1/2 teaspoon packed finely grated lemon zest (from 1 large lemon); 8 ounces zucchini, coarsely shredded (about 2 cups); 1/2 cup (56g) roughly chopped walnuts; Maple syrup and butter, for serving