Tweak:
Something else:
Good base flavours. You can at least partially prevent the rock-hard freezing problem by adding alcohol (1 or 2 oz) to the mix before putting it in the machine. Vodka won't add any taste, or you could add pear liqueur, or a complementary flavour of some other kind. Most all of my ice cream recipes have a little alcohol in them (since I rarely use enough fat or sugar to keep the creaminess level high), in the form of rum or vodka. It works wonders.