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Preheat oven to 350 degrees and grease two 8x4 bread pans well.
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In a bowl, mix vegetable oil and greek yogurt together.
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Add in brown sugar and granulated sugar, and mix until well combined.
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Add in the eggs, one at a time, and mix until combined.
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Sift in flour, cocoa powder, baking soda, and baking powder, and stir until combined.
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Mix in salt, cinnamon, espresso powder.
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Add in brewed coffee, shredded zucchini, and vanilla extract.
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Stir in chocolate chips.
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Divide batter evenly between both bread pans.
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Mix cinnamon and sugar together and sprinkle on top of batter.
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Bake for 50-55 minutes, or until a cake tester comes out clean.
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Allow to cool 10 minutes before removing from the bread pans, and continue cooling on a wire rack.
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Slice and enjoy!