Prepare the Pie Crust: Roll out the pie crust on a floured surface. Cut circles slightly larger than the cups of a mini muffin tin. Gently press each circle into the tin, ensuring the dough covers the bottom and sides.
Make the Filling: In a mixing bowl, whisk together brown sugar, corn syrup, melted butter, egg, vanilla extract, and salt until smooth. Fold in the chopped pecans.
Assemble: Spoon about 1 tablespoon of the pecan mixture into each crust-lined cup, being careful not to overfill.
Bake: Preheat your oven to 350°F (175°C). Bake for 20–25 minutes or until the filling is set and the crust is golden brown.
Cool: Allow the bites to cool in the tin for 10 minutes before transferring them to a wire rack. Serve warm or at room temperature.