These Brown Butter Rice Krispie Treats use the same basic ingredients as the classic recipe. However, browning the butter first adds a rich, nutty flavor!
Line a 9-inch square baking dish with parchment paper and set it aside.
In a large saucepan, add butter and melt over low heat.
Continue heating for about five minutes, swirling the pan gently to see the butter browning (do not stir). The butter will begin to foam.
With a rubber spatula, move the foam aside to monitor the brown bits on the bottom of the pan. The butter will begin to smell nutty. Continue to heat until desired level of browning is achieved.
Be sure the color of the butter has changed from yellow to a light tan/brown color and there will be specks of browned butter in the bottom of the pan. At this point, add in all but 1 cup of the mini marshmallows. Stir until melted.
Remove from heat and add in vanilla extract. Stir until smooth. Add in cereal and remaining 1 cup of marshmallows. Stir until evenly coated. Pour into the prepared baking dish. Press gently with your fingertips, just until completely spread out. Allow to set about one hour.
Notes
The goal to browning butter is the brown the milk solids somewhere between a light golden brown to a darker brown. If the solids are black, the butter is burnt.
Use fresh marshmallows and fresh cereal for best results!
Store krispie treats in an airtight container at room temperature for up to one week.
Freeze krispie treats on parchment paper, slide into a ziploc freezer bag. Freeze for up to 3 months. Thaw at room temperature.