- In a heavy saucepan over a medium burner, whisk together the eggs, egg yolks, and the melted honey until well combined. (Make sure the honey is not too hot or it will cook the eggs.) 
- Add the melted coconut oil, lemon juice, salt, and zest, and whisk until well combined. (Make sure the coconut oil is not too hot or it will cook the eggs.) 
- Whisk constantly for about 5 minutes. The mixture will begin to lightly simmer and thicken. 
- Use a spatula to scrape the curd into a sieve over a bowl. 
- Use the spatula to push the curd through the sieve. You will have lots of solid bits left in the sieve. 
- Whisk vanilla extract into the strained curd. 
- Cool, and then cover and refrigerate. The curd will continue to thicken as it cools. 
- If the curd is too tart, add additional honey to taste. 
- Covered lemon curd will keep for about a week in the refrigerator.