Heat oven to 400°F.
Peel and cut sweet potatoes into 1-inch cubes.
Add sweet potatoes to a large pot and add water to cover.
Bring water to a boil and boil sweet potatoes until tender. About 20 minutes.
Drain potatoes and return to pot. Mash with a potato masher until smooth.
Stir in butter, brown sugar and eggs and beat with a hand mixer until fluffy.
Scoop ½ cupfuls of the potato mixture onto a cookie sheet and bake about 20 minutes, until puffs are set.
While the puffs are baking, combine cranberry sauce, brown sugar and lemon juice in a small saucepan.
Cook over medium heat, stirring, until smooth and combined. Remove from heat.
Remove puffs from oven and brush with cranberry glaze before serving.
This is one of our favorite Christmas recipes!