I've got a brilliant ice cream maker. It's like a small double-walled stock pot. There's liquid in the cavities and it lives in the freezer. When we want ice cream I can make it within half an hour - 15 mins prep and 15 mins in the maker. You just take the lid off and scrape down the sides a few times and it's done and I can get two batches out of it before it needs refreezing. The other good thing is it permanently takes up some space in the freezer, helping to keep it full.
As for how long you can keep it - in our house it's as long as we can keep our hands off it. I have managed to keep one lot for about a fortnight, but that was with lots of self-discipline and snarling at the rest of the family
Try this, although it's still 4 egg yolks it makes much more volume and is the nicest icecream I have ever had - ever!!!
Brown bread ice cream
4 egg yolks
75 g caster sugar
1 teaspoon cornflour
½ vanilla pod ( i just used a tsp of essence)
250 ml milk
40 g butter
80 g crustless wholemeal bread
50 g soft light brown sugar
250 ml double cream
1 tablespoon brandy or Grand Marnier (Optional) - we put brandy in but I reckon it'd be just as good without
Whiz the bread in the food processor to make crumbs.
Mix the brown sugar with the melted butter and add the crumbs, stir well then spread the mixture on a baking sheet.
Bake the crumbs in a pre-heated oven at 180 centigrade for 15-20 minutes, turning from time to time until they are toasted and crisp.
Allow to cool.
Cut the vanilla pod open and scrape out the seeds.
Pour the milk into a heavy-based saucepan, add the vanilla pod and seeds and bring to the boil.
Remove from the heat and leave for 15 minutes to allow the flavours to infuse.
Whisk the egg yolks, sugar and cornflour in a bowl until thick and pale.
Gradually pour on the hot milk, whisking constantly.
Return the mixture to the pan and cook over a gentle heat, stirring all the time.
When the custard thickens and coats the back of the spoon, strain out the pod, add the brandy and cool.
Stir the cream into the custard and churn the mixture until thick.
Rub the breadcrumbs between your fingers to break up any lumps.
Stir the crumbs into the mixture, churn for 5-10 minutes until ready to serve.