First, stir together the sweetener, tapioca flour, and salt until combined in a medium saucepan.
1/2 cup monk fruit sweetener, 1 tbsp tapioca, 1/8 tsp pink salt
Do not turn the stove on yet.
Next, add the eggs, and egg yolks, and whisk.
3 whole eggs, 2 egg yolks
Whisk until the eggs are fully incorporated.
Add in lemon zest, and lemon juice.
1 tbsp fresh squeezed lemon zest, 1/2 cup freshly squeezed lemon juice
Stir until it is all combined.
Finally, add the lemon zest and juice to the pan.
Turn the stove on to medium-low.
Whisk constantly until it thickens slightly and registers 160 on a candy thermometer.
Taking about 5-8 minutes to thicken.
Once at 160 F remove it from the heat.
Finally, stir in the olive oil until combined.
1/4 cup good quality olive oil
Pour the curd into the warm tart shell.
Place the tart back into the oven and bake for 8 -12 minutes until the curd is set.
Remove from the oven.
The tart should barely jiggle in the center.
Lastly, allow the tart to cool on a wire rack for at least 2 hours before cutting.