French Onion Potato Gratin

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Appears in Cook's Country December/January 2024

To make a potato gratin even more comforting, give it the French onion treatment.

SERVES8 to 10

TIME2 hours, plus 30 minutes cooling

French Onion Potato Gratin

WHY THIS RECIPE WORKS

To take a delicious potato gratin over the top, we added elements found in French onion soup. We started by caramelizing onions, cooking them with water, salt, and butter in a covered pan to speed up the process; the steam helped break down...

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