Preheat your oven to 350ºF and place a rack in the middle.
This will ensure even baking of your crust.
Add the pine nuts to a food processor. Pulse until they are halfway ground.
Be careful not to over-process, to avoid any oil release from the nuts.
Use the processed pine nuts to shape your crust.
Press it into your tart pan evenly, making sure there are no thick areas.
Once finished, bake this pre-baked pine nut crust in the oven until slightly golden.
Combine eggs, egg yolks, sugar, and lemon juice in a mixing bowl.
Place over a pan of simmering water, stirring constantly until it thickens into a sabayon.
This step is critical for that luscious tart filling we all love.
Gently incorporate butter into the sabayon mixture while it’s still warm.
Pour this filling into your prepared crust.
For that perfect glossy finish, consider a quick broil just before serving.