Grease and flour tube (or bundt) pan and set out eggs and butter to allow them to come to room temperature.

In a large bowl, cream the butter and sugar until smooth. Add the eggs, one at a time, beating for one minute after each addition.

Stir in the vanilla.Alternate the flour and heavy cream into the mixture.

Pour into prepared pan and place in a cold oven. Turn the oven to 300 and bake for 80-90 minutes, until a toothpick inserted in the center comes out clean. Cool completely before removing from pan.