Prepare: Grease a 9x13 baking pan generously with butter. Pour out the cereal into a large bowl.
Melt: In a large pot over low heat, melt butter until almost completely melted.
Stir: Add mini marshmallows, reserving about a cup to add later, and stir until completely melted and smooth, taking care not to overheat. Stir in vanilla extract and salt.
Combine: Remove the melted marshmallow mixture and add to the rice cereal. Gently fold the cereal into the marshmallow until evenly coated.
Fold: Add remaining marshmallows and fold them into the cereal mixture.
Press: Transfer the mixture to the prepared baking pan and using a spatula or your hands, press the mixture into the pan, being careful not to pack it in.
Notes
Storage: Store leftover gluten-free rice crispy treats in an airtight container at room temperature for up to 4 days. You can also individually wrap them with plastic wrap. Helpful Tips:
Keep the heat on low - When melting marshmallows, it's important to keep it on low heat as the high heat can inadvertently harden the marshmallows.
Stick with it - It will be hard to stir when folding the cereal into the marshmallow mixture as it'll be awkward and sticky. Just slowly and gently continue to fold until evenly coated.
Lightly grease your hands - You may want to oil your hands or the spatula when pressing the cereal mixture into the pan.
Don't pack it in - Take care not to press the rice crispy mixture too firmly into the baking dish as that will create very firm and dense treats. You want your crispy treats nice and soft.
The information shown above is an estimate provided for your convenience by an online calculator. It should not be considered as a substitute for a professional nutritionist's advice. Please see our complete Nutritional Information Disclaimer.