Preheat the oven to 325 degrees F. Butter and flour a bundt pan (mine is a 7 cup) generously – this is the ONLY thing that I find works in removing a cake successfully from the bundt pan. Do not use baking spray – butter and flour!
In a small bowl, whisk together the flour, pistachios, baking powder, salt and cinnamon. In a large bowl, whisk together the butter, sugar, eggs, lemon zest, vanilla extract and almond extract until combined and smooth. Stir in the zucchini. Stir in the dry ingredients until a batter forms.
Scoop the batter into the greased and floured bundt pan. Bake the cake for 60 minutes, or until a toothpick inserted in the center comes out clean. Let the cake cool for 15 minutes in the pan, then gently turn the cake out and let it cool completely.
Once cool, drizzle it with the glaze and top with the crushed pistachios. Slice into wedges and serve!