Wash the fresh strawberries under cold water. Remove the green stems from the tops. Dry them very well with a paper towel.

Cut the berries into thick slices. Place them in a large glass bowl. Make sure they are all about the same size.

Add granulated sugar and Grand Marnier to berries. Stir them very gently with a spoon. Let them sit for thirty minutes total.

Pour cold heavy cream into a cold bowl. Beat it with an electric mixer. Mix until the cream starts to get thick.

Add the powdered sugar and vanilla extract. Keep beating until firm peaks form. Be careful not to make butter.

Add the cold sour cream to the mix. Fold it in gently with a spatula. This adds a very nice tangy flavor.

Stir in the fresh orange zest now. This makes the cream smell very bright. It pairs perfectly with the sweet strawberries.

Add the berries and their juice to cream. Fold them together with very few strokes. You want to see white and red swirls.

Spoon the mixture into small glass bowls. Chill them in the fridge for one hour. Serve them cold to your very happy guests.