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Slice and serve the focaccia.
Turn off the oven and remove the baking sheets. Slide the focaccia loaves onto a large cutting board and use a chef's knife or pizza cutter to cut the bread. For an extra-rich flavor, drizzle a little more olive oil over the focaccia and serve it hot or warm.  You can cut the focaccia into uniform squares or irregular triangles. Although the focaccia will have the best texture the day it's baked, you can store it in an airtight container at room temperature for up to 5 days.