Salted Caramel Bourbon Rice Crispy Treats

INGREDIENTS

bag mini or full size marshmallows (10 ounces to 10.5 ounces)

1 stick

unsalted butter (8 tablespoons or 4 ounces by weight, plus extra for the pan)

1/2 tsp

kosher salt

2 tbsp

bourbon

1 tsp

pure vanilla extract

5 1/2 cups

crisped rice cereal

1 cup

caramel baking bits

coarse flake sea salt (like Maldon sea salt)