Insert wooden sticks into the apples.

Line a baking sheet with parchment paper.

In a saucepan, combine sugar, butter, corn syrup, and salt.

Cook over medium heat, stirring until the mixture boils.

Continue to cook without stirring until the mixture reaches a golden color.

Remove from heat and stir in vanilla extract.

Dip each apple into the caramel, coating evenly.

Place the coated apples on the prepared baking sheet to cool.