Place lemon zest and honey into a food processor and blend until smooth
Add melted coconut oil and process once more before adding your eggs, one at a time, processing well between each one
Finally add your lemon juice and salt, then process until incorporated
Transfer your mix into a small pot and whisk over a low heat until thickened. It is important to whisk frequently to avoid lumps. This process can take up to 15 minutes.
Allow mixture to cool completely, then place in a glass jar in the fridge to store.