Preheat oven to 325°F.
Grease and flour a Bundt or tube pan.
Beat butter and cream cheese until smooth.
Add sugar slowly and beat until fluffy.
Add eggs one at a time, mixing after each.
Mix in vanilla extract and butter extract.
Slowly alternate flour and heavy cream: flour, cream, flour, cream, flour. Mix until smooth.
Pour into prepared pan.
Bake 1 hour 15 minutes to 1 hour 25 minutes. Toothpick should come out clean.
Cool in pan 15–20 minutes before turning out.
