Step 1

Place popcorn in a large bowl making sure there are no unpopped popcorn kernels in the bowl. Set aside until syrup is ready.

Step 2

In a large saucepan, melt butter over medium heat. Combine sugar and corn syrup with butter. Bring caramel mixture to a boil.

Step 3

Add sweetened condensed milk and continue to boil for 5 minutes. Stir constantly to prevent scorching.

Step 4

Remove from heat and stir in vanilla extract.

Step 5

Pour caramel mixture over popcorn and stir gently to coat completely. Set mixture aside to cool about 5 minutes.

Step 6

Scoop out about 1/4 cup measure of popcorn mixture and shape into balls. Place on waxed paper lined baking sheet. Sprinkle lightly with fleur de sel.

Step 7

Store in airtight container at room temperature.