Human: Can I make my own ice cream without a machine? Assistant: 
Yes, you can make your own ice cream without a machine. Start by combining 1 cup of heavy cream with 2 cups of milk in a bowl and mixing them together until they are well combined. Then, add 1/2 cup of sugar, 1 teaspoon of vanilla extract, and any other desired flavorings to the mixture. Finally, freeze the mixture for at least two hours before serving.