Ina Garten's recipes are the best. We tested dozens to determine which to include in your holiday meal, whether you're dining solo or having a party.

When they're on the holiday table, they play so well with all the other dishes there," Dan Souza, the chief content officer for America's Test Kitchen, told Morning Edition. "Let's say you have a roast or turkey along with the mashed potatoes.

Ina Garten's delicious potato gratin requires only five ingredients and little effort. It's the perfect make-ahead dish for the holidays.