Baked kale with gruyere and sweet potato-poblano gratin
I first came up with the idea for an orange-and-green series back in November, when winter squash were everywhere and the season stretched long before us. But now it’s almost the end of January and the supply of local squash is dwindling down to butternut, acorn, and spaghetti. So, forthwith, the rest of the recipes!
Let’s go back in time to Thanksgiving. The baked kale and sweet potato gratin were my contribution to the table this year. The traditional Thanksgiving palette runs the narrow stretch of neutrals between beige and white, so it’s nice to see some pops of color on the plate. The challenge with The Holiday Edition is dealing with the quantity of kale it takes to fill a 9 x 13 pan after being sautéed with shallots and onion. Kale is not a ruly vegetable. It has not a single ounce of rule in it, and just the draft caused by turning around will make it fly all over the place. You’ll probably also run out of bowls for washing it in. Definitely use two pans to sauté it all. Even with two pans, it doesn’t all fit right away, so I add it in batches as it wilts down.
And beware, the gratin calls for the use of the most bloodthirsty tool in the kitchen: the mandoline. Keep your band-aids close by and be prepared to give up some fingernails/fingertips. The sacrifice is worth it. While I’m not entirely sure what this says about the gratin, it was pronounced the best side dish on the Thanksgiving table by a man who doesn’t really eat vegetables.
If you have any gratin and gruyere left over, put the gratin in a dish, top it with the cheese, and pop it in the oven at 400 degrees. After 15 minutes, crack two eggs on top, bump the heat up, and cook for another 5 minutes or so, until the whites are set but the yolks are runny.
The kale comes from a recipe found in Food and Wine a few years back and I adapted the gratin from this recipe in last year’s Thanksgiving issue of Gourmet. All I did was substitute sweet potatoes for the potatoes.