Preheat oven to 350°F. For syrup, in a medium saucepan combine brown sugar, honey, cream, and butter. Bring to a boil; reduce heat. Simmer, uncovered, 5 minutes. Cool slightly.
Meanwhile, in a small bowl combine walnuts, pistachios, granulated sugar, and cinnamon.
Grease a 10-inch round baking pan. Spoon half of the sauce, walnut mixture into the baking pan. Arrange cinnamon rolls on top. Add remaining sauce and walnut mixture.
Bake 40 minutes or until golden. Let stand 5 minutes. Serve warm!
Video
Notes
*Feel free to use any nut combination you like. We loved it as is but if you prefer only walnuts you can omit pistachios or vice versa.