Ingredients

3 large or 4 small heads garlic 

6 thyme sprigs 

Extra-virgin olive oil 

Preparation

Preheat oven to 275 degrees. Using a serrated knife, remove the top third of each head. Place garlic, cut-sides down, in a 6-cup loaf pan. Add thyme and enough oil to just cover (about 2 cups). Cover with parchment-lined foil and bake until garlic is soft, 1 hour to 1 hour, 15 minutes. Let cool completely, then transfer to an airtight container and refrigerate up to 2 weeks. (Oil can be strained after a day or two and refrigerated separately.)