4tablespoons milk or half and halfenough to thin the potatoes just a bit
1tablespoonlight brown sugarpacked
For the topping
1/2cuplight brown sugarpacked
2tablespoonsgranulated sugar
1 1/2 teaspoons ground cinnamon
3 tablespoons buttercold
1/4 cup chopped walnuts
Instructions
Preheat the oven to 350.
Place the unpeeled sweet potatoes on a baking sheet and bake until soft all the way through--about 30 minutes. Set aside to cool until you can handle them but still warm--about 5 or 6 minutes.
When cool enough to handle, peel the skins off and transfer the potatoes to a medium bowl. Add the melted butter, salt, half and half and brown sugar. Blend with a hand mixer or mash by hand until smooth--about 3 minutes.
Transfer the potatoes to your 8x8 dish. Set aside. In the same bowl, add the brown sugar, granulated sugar, cinnamon, salt and cold butter. Using two forks or your hands, break the butter up until it is about the size of peas. Add the nuts and toss to mix.
Sprinkle the topping over the potatoes and bake until the topping is crispy: 25 to 30 minutes.