Step 1

Line a 9x5-inch loaf pan with parchment paper.

Step 2

In a medium saucepan, melt chocolate chips and sweetened condensed milk over medium-low heat. Stir continuously until smooth and combined.

Step 3

Remove from heat and stir in vanilla extract and cinnamon.

Step 4

Sprinkle your desired amount of cinnamon sugar mixture over the top.

Step 5

Let chill in the refrigerator 2 hours. Cut into 1-inch squares.