Gorgonzola Celery Root Mashed Potatoes are the creamiest, most flavorful side dish recipe I've ever enjoyed! Perfect for Thanksgiving or a weekday dinner!
Cover 5 large Yukon Gold potatoes and 1 celery root (peeled and cubed) with cold water in large pot. Add 1 tablespoon salt and cook on high until vegetables are very tender, about 20 minutes.
While the potatoes and celery root are cooking, melt half of the 4 tablespoons unsalted butter in a sauté pan over medium high heat and add 3 medium shallots (diced). Cook until caramelized, stirring regularly to avoid burning, about 8-10 minutes. During the last minute of cooking, add 1 clove garlic (minced), stir, and cook for another minute or two.
Once potatoes and celery root are tender, drain water. Transfer to heavy-duty mixer fitted with whisk attachment or a large bowl with a masher. Beat or mash potatoes and celery root with remaining butter and sauteed shallots and garlic until mashed. Add 6 ounces crumbled gorgonzola cheese and 1/3 cup milk and beat until desired consistency is achieved. Season with salt and pepper, as desired.