Preheat oven to 350°F.

Bring a pot of water to a boil. Fill a bowl with ice water and keep nearby.

Score an X on the bottom of each tomato.

Blanch tomatoes in boiling water for 20 seconds, then immediately transfer to the ice bath.

Once cool, gently peel skins from the tomatoes using your fingers.

Arrange peeled tomatoes in a single layer in a baking dish.

Pour in olive oil until tomatoes are just submerged. Add garlic, basil, thyme, and kosher salt.

Cover with foil and bake for 30 minutes.

Remove from oven and let cool completely in the oil.