There's a very easy way to transform this no-churn vanilla ice cream into chocolate. Simply add two tablespoons of cocoa powder or chocolate milk powder to the ingredients before you put them in the bag. You will want to use a whisk to make sure the mixture is well blended before you start. Then, proceed with the ice cream in a bag recipe. When you're done, you can also add chocolate syrup or sprinkles for extra chocolatey goodness!