French Onion Potato Gratin

"My French onion potato gratin recipe pairs the savory flavor of French onion soup with creamy potatoes and golden, cheesy edges. The trick is stacking the potato slices upright so more of each slice peeks above the cream. It's a cozy side dish worth making room for on your holiday table. My husband loved my balsamic caramelized onions so much I wanted to turn them into another side dish. For the onions, we build flavor with thyme, time (get it?), and a splash of balsamic. Yes, both kinds of thyme matter here. No onion soup mix required for fantastic French onions. Besides, it would overwhelm the dish and make it far too salty. "

Preparation Time15 min

Cooking Time1 hr 40 min

Cooking MethodOven