Preheat oven to 375°F (190°C).
Boil sliced sweet potatoes until tender but not mushy. Drain and set aside.
Make syrup by simmering sugars, butter, water, cinnamon, nutmeg, and vanilla in a saucepan.
Layer sweet potatoes and syrup in a greased baking dish.
Top with pie crust, brush with melted butter, and sprinkle with sugar.
Bake for 30–35 minutes until golden and bubbly.
Cool slightly and serve warm.
This Sweet Potato Cobbler is a delightful, soul-warming dessert that will quickly become a family favorite!