A beautifully rustic, of-the-moment Damson plum galette with fresh thyme, ground star anise, and a flaky all-butter crust.
In a large bowl, use a fork to combine flour, sugar, and sea salt. Use your fingertips and the palm of your hand to flatten and smush the butter into the flour mixture. Fold in just enough ice water for dough to hold together.
Turn dough out onto a lightly floured surface, gather into a disc, and wrap tightly with plastic. Chill for 30 minutes or up to 3 days ahead.
Preheat oven to 425 degrees F. Line a rimmed baking sheet with parchment.
In a large mixing bowl, toss to combine plums, 6 tablespoons sugar, lemon zest and juice, thyme, star anise, and sea salt. Taste a plum and add up to two tablespoons more sugar as needed. Fold flour into the mixture and set aside.