Chef John's Sweet Potato Casserole

Ingredients

• Servings: 1
• 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

Recipe

Preparation Time: 15 mins Cook Time: 35 mins Ready Time: 1 hr


• 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 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.