In the bowl of a stand mixer fitted with the paddle attachment, cream together butter and sugar on medium speed until light and fluffy, 3 to 5 minutes.
Meanwhile, in a small bowl, whisk together remaining crust ingredients. Reduce mixer speed to low and add flour mixture, mixing until just combined.
Turn out dough onto a clean work surface, and, using the heel of your hand, smear the dough lightly and rapidly, folding the dough back on itself as needed, until smooth, about 1 minute.
Shape into a rectangle, wrap in plastic, and refrigerate overnight.
Preheat oven to 350°F. Butter a 4x13-inch tart pan.
Use your fingers to press the dough into the tart pan in a even layer. Cover with baking parchment and pie weights.
Place on a baking sheet and bake 15 to 20 minutes. Remove weights and parchment and continue to bake until crust looks dry and feel slightly firm, another 15 to 20 minutes.
Cool completely.