In a large microwaveable bowl, pour in the white chocolate chips. Microwave on high for 30 seconds, then stir thoroughly. Continue to heat in 15 to 30-second increments, stirring in between, until the mixture is fully melted and smooth, appearing glossy without any lumps.

Once the white chocolate is smooth and melted, add the lemon extract and stir well to incorporate it into the chocolate.

Gently fold the Chex cereal into the melted chocolate mixture. Use a spatula to carefully mix, ensuring each piece of cereal gets coated without breaking.

Next, either add the powdered sugar directly into the bowl with the coated cereal or transfer the mixture to a large sealed gallon zip bag. If using a bag, seal it tightly and shake vigorously to coat the cereal evenly.

Spread the mixture onto a lined baking sheet in an even layer. Allow the treats to cool and dry at room temperature for about 30 minutes.

Once cooled and set, transfer the Muddy Buddies into an airtight container to keep them fresh.