To make the bottom crust, place all ingredients into a food processor and blitz until crumbly.
Using 4 individual tart pans, evenly divide the bottom crust between them. Press the crust down firmly. Refrigerate or place in the freezer until it sets, about hour in the freezer or a couple of hours in the fridge.
Meanwhile, make the lemon curd topping. In a large pot on the stove on low heat, whisk together the eggs, lemon zest and honey. Add the lemon juice, coconut oil, vanilla extract and coconut butter and continue to whisk on medium heat until everything is melted and the mixture starts to thicken. This process may take 10-15 minutes.
Once the bottom crust is set, pour the lemon curd mixture into each cup. Put back in the fridge or freezer and wait until it's set to enjoy. It will take about an hour in the freezer and a couple of hours in the fridge.
DO NOT STOP WHISKING :) Whisk continuously until it thickens.