Preheat oven to 350 degrees and line a loaf pan with parchment paper. Make sure several inches of parchment hang over each side.
In a large mixing bowl, combine coconut flour, baking soda, salt and lemon zest.
In a blender, combine remaining ingredients in a blender and puree until smooth.
Add liquid ingredients to dry and stir to incorporate. Pour batter into loaf pan and spread evenly.
Baking for 35 minutes or until the batter is slightly firm to touch and a toothpick comes out mostly clean but with a bit of moisture. Allow to cool at least 30 minutes before slicing.