For optimal flavor and texture, use freshly roasted sweet potatoes; boiling can introduce too much moisture. Ensure the sweet potatoes are mashed until completely smooth for a silky filling. When baking the pie, don't overbake, as the filling continues to set as it cools; a slight jiggle in the center is acceptable. The pecan topping is delicate under the broiler – watch it meticulously, as brown sugar can burn swiftly. For a richer topping, a pinch of flaky sea salt can balance the sweetness. Allow the pie to cool completely on a rack after both baking and broiling; this is critical for the filling and topping to set properly, preventing a runny consistency.