Chef John's Sweet Potato Casserole Recipe



Ingredients:
  • Sweet potatoes:
  • 2 1/2 pounds sweet potatoes, peeled and cubed
  • salt
  • 2 tablespoons butter
  • 2 large eggs
  • 1/4 cup maple syrup
  • 1/4 cup buttermilk
  • 1/3 cup milk
  • 1/2 teaspoon vanilla extract
  • 1/2 teaspoon salt
  • 1 pinch ground allspice
  • 1 pinch cayenne pepper
  • Pistachio crust:
  • 1/2 cup chopped roasted, salted pistachios
  • 1/2 cup light brown sugar
  • 1/3 cup all-purpose flour
  • 1/4 cup butter, melted


  • Instructions:
  • Preheat oven to 350 degrees F (175 degrees C). Grease a 2 1/2-quart baking dish with butter.
  • Place sweet potato cubes into a large pot, cover with water, and add a large pinch of salt. Bring to a boil and cook until a knife is easily inserted into a sweet potato cube, about 10 minutes. Drain well. Return to the pot and mash 2 tablespoons butter into sweet potatoes.
  • Whisk eggs, maple syrup, buttermilk, milk, vanilla extract, cayenne pepper, allspice, and 1/2 teaspoon salt together in a large bowl until smooth. Gradually mash sweet potatoes into egg mixture, starting with 2 tablespoons of sweet potato mixture, until all sweet potatoes are incorporated. Transfer sweet potatoes into prepared baking dish.
  • Mix pistachios, brown sugar, flour, and 1/4 cup melted butter together until completely mixed. Crumble topping evenly over top of sweet potatoes. Use the back of a fork to gently press pistachio mixture down onto sweet potatoes.
  • Bake in the preheated oven until topping is browned and casserole is set, 25 to 30 minutes. If desired, place under oven's broiler for 5 minutes to give topping a little more brown color. Let rest to cool slightly before serving, about 10 minutes.
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