- ¼ cup unsalted butter
- ½ cup granulated sugar
- ½ cup dark brown sugar
- ½ cup light corn syrup
- ½ cup sweetened condensed milk
Place deep flexiflat on a perforated baking sheet and set aside.Place butter in large round mold. *Use the microwave glass plate to act as a support for the mold when removing it from the microwave.Microwave 30 seconds to soften the butter. Remove from microwave and stir in the sugars, corn syrup and condensed milk. Microwave for 2 minutes. Stir. Microwave for another 2 minutes. Stir. Microwave for a final 2 minutes. Stir and pour immediately into one end of the deep flexiflat (will only fill ½). Let cool completely. Use the smooth side of the cake server knife to cut into pieces.