- Combine Ingredients:
- In a microwave-safe bowl, combine all ingredients: butter, white sugar, brown sugar, light Karo syrup, and sweetened condensed milk.
- Microwave Cooking:
- Cook on medium-high heat in the microwave for 6 minutes total, stirring well after each minute to ensure even cooking. Use caution as the mixture will become very hot.
- Pour and Cool:
- Stir the mixture well after cooking and pour it into a lightly greased dish. A square baking dish works well for this purpose.
- Cooling:
- Allow the caramel mixture to cool completely at room temperature. This will take several hours to set.
- Cut and Store:
- Once cooled and set, cut the caramel into small squares using a sharp knife.
- Wrap each piece in wax paper or parchment paper to prevent sticking.
- Store the wrapped caramels in an airtight container to maintain freshness.