6 ounces(170 grams) unsalted butter, at room temperature
3/4 cup(150 grams) granulated sugar
2 tablespoonsfinely grated orange zest
2 tablespoonsfinely grated lemon zest
1vanilla bean, halved and scraped
3large (170 grams) eggs, at room temperature
1/4 teaspoonalmond extract
1 1/2 cups(143 grams) almond flour
3 tablespoonsall-purpose flour
1/2 teaspoonfine sea salt
Instructions
Heat the oven to 375°F with a rack in the lower third of the oven (preferably with a baking steel or stone on it). Place the cooled par-baked crust on a baking sheet.
In the bowl of a stand mixer fitted with the paddle attachment, cream the butter, sugar, orange zest, lemon zest, and vanilla bean seeds until light and fluffy, 3 to 4 minutes.
Add the eggs one at a time, mixing until each is incorporated before adding the next. Scrape the bowl well between each addition, and again once all the eggs are incorporated. Add the almond extract and miz to combine.
Add the almond flour, all-purpose flour, and salt, and mix to combine. Pour the mixture into the prepared pie crust and spread into an even layer. Transfer to the oven and bake until the top has browned and the filling appears set in the center, 40 to 45 minutes. Let cool completely before slicing and serving.