Brown Butter Rice Crispy Treats

Spray a 9 x 13 baking dish with nonstick spray and set aside

1. In a large heavy-bottom Dutch oven, over medium heat, melt butter and cook until lightly browned, about 5 minutes.
2. Add marshmallows, vanilla, and salt, and stir until all the marshmallows have completely melted.
3. Remove from heat and add rice crispies and stir until well combined. Pour mixture into prepared dish.
4. Allow the rice crispies to cool and cut into desired size.