Every step of this recipe will require the crust to stay cold Make sure to refrigerate the dough if it becomes too warm during the process before proceeding

To begin, in a food processor add 1 1/2 Cups all purpose flour (187 grams) 1 Tablespoon sugar 1 teaspoon salt Pulse until everything is combined

Next, quickly prep the butter 1 cup butter, two sticks, cut into slices Make sure the butter is fully cold and work quickly so that it doesn't become too soft

Scatter the chopped pieces of very cold butter on top of the flour mixture Pulse until the butter breaks up into small chunks Pour in 8oz cold sourdough starter (227 grams) Pulse until the dough barely holds together with some crumble

Remove the dough from the food processor and squeeze it a bit to hold it together  Lay the dough pieces on your countertop We recommend using a chilled rolling pin Divide the dough into two equal pieces Shape each into flattened discs and wrap in plastic wrap

The dough needs to chill thoroughly (at least an hour) before rolling it out  This dough will hold several days in the fridge if necessary