
(I like tuna sandwiches a lot. Probably why I've spent so much energy thinking about this.)
I've come to realize that this holds true about lemon tarts as well. It's such a simple thing, a lemon tart. A crust of some sort holds a lemon filling. Easy, yes. But that ease makes it fall prey to mediocrity. A thick, boring crust. A lemonish filling (or worse, lemonesque). Accessorized with all sorts of craziness. Or, the worst possible circumstance, a SWEET dessert. And yet, we'll eat these bad lemon tarts because they are ok. Safe. Fit the bill. It's like the fast food cheeseburger of pastry. Its like a bad tuna fish sandwich.
So what is a good lemon tart? Rich, yet light on the tongue. Bright, a little sweet. A crust that has flavor but is not the focus. Mostly, it is about the lemon.
Now, these are reflections of my preferences. I want my lemon tart filled with a good, tart lemon curd. That lemon curd should be fresh, and well made, and really, I don't see a reason for it to have gelatin. It could be lemon curd that has been mixed with a bit of whipped cream, but only on certain alternate Thursdays. I want a well cooked sweet crust that is barely thick enough to hold the tart together, to provide the tiniest texture contrast. I don't need meringue, or whipped cream, or powdered sugar or a garnish of mint. Seriously, it is about the lemon.
Really, it is just better if I make it at home.
Lemon Curd for My Perfect Lemon Tart:
equal parts lemon juice (meyer lemon for variety), sugar, whole fresh eggs and cold butter
Mix sugar and lemon juice in a pot.
Beat eggs in a bowl.
Cut the cold butter into cubes.
Bring the sugar and lemon juice to a simmer over medium heat.
Add the juice mix to the eggs a little at a time, whisking constantly, until all is mixed together.
Pour eggs and juice back into the pot, and return to the burner over medium low heat.
Using a wooden spoon, stir constantly until the mixture thickens. It should not boil.
Pull the pot off the stove, and begin whisking in the cold butter, a few pieces at a time, until all the butter has been added and has melted.
Strain to remove any bits. Fill already cooked tart shells, and bake at 350 for 5 minutes to set. Cool and eat or refrigerate.