Ingredients

• 1 ¼-oz. envelope active dry yeast (about 2¼ tsp.)

• 2 tsp. honey

• 5 cups (625 g) all-purpose flour

• 5 tsp. Diamond Crystal or 1 Tbsp. Morton kosher salt

• 6 Tbsp. extra-virgin olive oil, divided, plus more for hands

• 6-8 plums (I used Italian prune plums, but regular plums work fine too.)

• olive oil to grease the pan

• Flaky sea salt

• fresh thyme

• honey to drizzle

Instructions

1. Whisk one ¼-oz. envelope active dry yeast (about 2¼ tsp.), 2 tsp. honey, and 2½ cups lukewarm water in a medium bowl and let sit 5 minutes (it should foam or at least get creamy; if it doesn’t your yeast is dead and you should start again—check the expiration date!).

2. Start adding the flour and salt, but add only four cups flour at first and mix. Add more flour if needed. What you want is a shaggy dough with no dry streaks of flour.

3. Pour 4 Tbsp. extra-virgin olive oil into a big bowl that will fit in your refrigerator.

4. Transfer dough to bowl and turn to coat in oil.

5. Cover with a silicone lid or plastic wrap and chill until dough is doubled in size (it should look very bubbly and alive), at least 8 hours and up to 1 day.

6. If you’re in a rush, you can also let it rise at room temperature until doubled in size, 3–4 hours.

7. After the dough has risen double in size, use a silicone spatula, gather up edges of dough farthest from you and lift up and over into center of bowl.

8. Give the bowl a quarter turn and repeat process.

9. You want to deflate dough while you form it into a rough ball.

10. Generously oil a 13×9″ baking pan, for thicker focaccia that’s perfect for sandwiches, or an 18×13″ rimmed baking sheet, for focaccia that’s thinner, crispier, and great for snacking.

11. Dump the dough to the center of the prepared pan.

12. If you try to stretch it out right away to the corners of the pan, it will be difficult.

13. Wait fifteen minutes to a half hour, then stretch out the dough. It will be much easier.

14. Pour any oil left from the bowl onto the dough.

15. Let rise a second time, uncovered in the baking sheet, in a dry, warm spot (like near a radiator or on top of the fridge or a preheating oven) until doubled in size, at least 1½ hours and up to 4 hours.

16. Place a rack in middle of oven; preheat to 450°.

17. To see if the dough is ready, poke it with your finger. It should spring back slowly, leaving a small visible indentation.

18. If it springs back quickly, the dough isn’t ready. (If at this point the dough is ready to bake but you aren’t, you can chill it up to 1 hour.)

19. Lightly oil your hands. If using a rimmed baking sheet, gently stretch out dough to fill.

20. Dimple focaccia all over with your fingers, creating very deep depressions in the dough (reach your fingers all the way to the bottom of the pan).

21. Place cut plums on the focaccia, pushing them down into the dough,

22. Drizzle with 1 Tbsp. extra-virgin olive oil and sprinkle with flaky sea salt and thyme.

23. Bake focaccia until puffed and golden brown all over, 20–30 minutes.

24. Drizzle with more olive oil and additional salt if needed.

25. Focaccia is best eaten the day it’s made, but keeps well in the freezer.

26. Slice it into pieces, store it in a freezer-safe container, then reheat it on a baking sheet in a 300° F oven.