To prepare a vanilla and grand marnier souffla recipe, first you need to prepare the ingredients. First, you'll need the following ingredients: 12 cup of heavy cream 1 tablespoon of vanilla extract 1 teaspoon of Grand Marnier 2 tablespoons of confectioners' sugar Instructions: Preheat the oven to 375 degrees F. Line an 8 x 8-inch baking dish with foil and set aside. In the bowl of an electric mixer, cream the butter and sugar on medium speed until light and fluffy, about 2 minutes. Add the eggs and beat until the whites are stiff peaks. Gradually add the flour, beating after each addition. Pour the mixture into the prepared dish. Bake the dish for 20 to 25 minutes, or until it's set and the top is golden brown.