Melt butter on low heat in large pot or dutch oven. Add marshmallows, stirring often, until smooth and melted. Mix in half and half and remove from heat.
Add in cereal, candies, sprinkles, and sugar and mix until mixture comes together. Press mixture evenly into an 8x8 or 9x9 inch baking dish.
Add more sprinkles and sugar to top if desired. Allow to cool completely, then cut into squares with sharp knife.
This recipe can be made in a 9x13 inch pan, which will give you more traditional sized treats.
To prevent hands from sticking to treats, place a piece of parchment, waxed paper, or plastic wrap on top before pressing into pan.
Store in airtight container at room temperature for up to 3 days for best flavor. You can also wrap individually in plastic wrap.
Calories: 283kcal | Carbohydrates: 49g | Protein: 2g | Fat: 9g | Saturated Fat: 6g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 1g | Trans Fat: 1g | Cholesterol: 12mg | Sodium: 38mg | Potassium: 14mg | Fiber: 1g | Sugar: 33g | Vitamin A: 150IU | Vitamin C: 1mg | Calcium: 34mg | Iron: 1mg