• Line a 9x9-inch square baking pan with parchment paper.

Browned Butter

• Start out with browning your butter.

  I have a whole article on How to Brown Butter for more tips & tricks!
• Slice the butter into cubes, and add to a large sauce pot.
• Melt on medium-low heat, stirring consistently.
• The butter will begin to form a layer of foam on top, and browned bits (these are milk solids) on the bottom of the pan.
• Once the butter is amber colored and has a deep, nutty aroma, it's time to go to the next step to assemble the treats.

Rice Krispie Treats

• Turning the heat to low, pour 10 ounces of mini marshmallows and vanilla extract right into the brown butter.
• Stir continuously using a silicone spatula/spoon until the marshmallows are completely melted and smooth.
• Remove the pan from heat and stir in the Rice Krispie cereal plus the remaining 2 ounces of mini marshmallows. Stir well until combined.

  If you have any additional mix-ins (sprinkles, crushed cookies, etc.) stir them into the mixture at this step as well.
• Pour the Rice Krispie treat mixture into the prepared baking pan. Press gently with a square of parchment paper + your fingers to spread it out to the edges.

  The harder you pack your mix into the pan, the harder the treats will be once they set. We want these to be nice and gooey!
• Let the pan cool in the refrigerator for 20 minutes, or on the counter at room temperature for about 40 minutes.
• Cut into 16 even squares and serve. Enjoy!