Combine flour, salt, and sugar in a food processor and pulse to combine.

Add solid coconut oil and pulse until the mixture is crumbly and sticks together when squeezed.

Pulse in 1/3 cup ice water, adding more if needed, until the dough just holds together but still has crumbs.

Turn dough onto a floured surface and shape into a flat ball.

Wrap with plastic wrap and freeze or refrigerate.

When ready to use, roll out the dough into a large circle.

Lift onto a pie pan, fix any tears, and crimp the edges.

Refrigerate until the filling is ready.