Could you share your ice cream recipe!?
First, the preparation.
Split 6 eggs into yolks and whites. You don't need the whites for this, so you can do with them what you like. Use them to make ice cream cones, if you want.
Pour 250ml of cream into a large bowl. Put that bowl inside another bowl or dish that is large enough to hold it, and has lots of ice and water in it. Put a sieve on top of the bowl.
Pour another 250ml of cream and 250ml of full cream milk into a medium sized pot, along with 3/4 of a cup of white sugar, half a teaspoon of salt, and a teaspoon of vanilla essence. Add the 6 egg yolks.
Turn the heat onto medium. I recommend a small hot plate for this, you don't want to heat the mixture up too rapidly. Stir it every few minutes.
As the mixture gets hotter, you need to stir it more often. Heat it too much or too fast and you will make scrambled egg. So keep it heating nice and evenly, will take about 15 minutes.
You need the mixture to reach about 75 degrees C. Use a food thermometer if you have one, the other way to tell if it is ready is the mixture will become thick enough to coat the back of a spoon. You will also start to be able to smell a custardy smell.
When it is done, pour it through the sieve into the other half of the cream, and mix it in thoroughly. Let it chill in the bowl for a while. Transfer the mixture to a container that can go in the fridge for at least 6 hours.
Once it is chilled, you can freeze it. Either use an ice cream machine, or do it by hand. To freeze it by hand, put it into the freezer, and take it out every 30 minutes to beat it with a whisk. This stops ice crystals from forming. With a machine, you don't need to do this.
EDIT: I know you guys will ask about sugar free ice cream. You can make sugar free ice cream - personally if I was going to do that, I would make it flavoured with real fruit. It will also freeze a lot harder without sugar, it will be more icy.