Brown 12 T. butter in a medium saucepan and add:

• 3 cup brown sugar
• 2/3 cup Heavy whipping cream or condensed milk
• 1/2 tsp salt

Bring to boil until mixture reaches 234 degrees. Remove from heat and add

• 3 cups marshmellows
• 12 oz white chocolate chips

Mix well and pour into a 8×8 (or larger) greased pan.