Preheat oven to 350°F (175°C). Grease a 9×13-inch baking dish.
Mix flour, sugar, and baking powder in a bowl. Stir in milk to make a batter.
Combine brown sugar, melted butter, corn syrup, vanilla, and salt in another bowl. Fold in chopped pecans.
Pour the pecan filling into the dish. Drizzle the batter over the top and scatter whole pecans.
Bake for 40–45 minutes, until the top is golden and the filling is bubbling.
Let cool for 10–15 minutes. Serve warm with whipped cream or ice cream.
Notes
- For a deeper flavor, use dark corn syrup instead of light. - This cobbler tastes even better the next day—reheat before serving. - Store leftovers in the fridge for up to 4 days.