Can I make banana ice cream with cream without an ice cream maker?
Yes. Use the no churn method in the instructions. The key is chilling the base well, then freezing it while stirring a few times early on to break up ice crystals.
Do I have to cook the base?
No. Cooking is optional. The quick warm-up helps dissolve sugar and can improve body and scoopability. If you want a true dump and blend situation, skip it and just chill the blended base thoroughly.
My ice cream froze rock hard. What happened?
Usually one of a few things: your bananas were not very ripe, you reduced the sugar too much, you used more milk and less cream (lower fat and solids), or your freezer runs cold. Let it temper on the counter before scooping. Next time, make sure the bananas have lots of brown spots and keep at least a little sugar or honey in the mix. If you changed the dairy, expect a firmer, icier freeze.
Can I use half-and-half or milk instead of heavy cream?
You can, but it will freeze icier. If you only have half-and-half, use it and add 2 to 3 tablespoons of cream cheese for a more stable, creamy texture. If you want to try 1 to 2 tablespoons of melted butter, blend it in very thoroughly and chill well so it emulsifies, otherwise it can taste a bit greasy. Heavy cream gives the best texture.
How ripe should the bananas be?
Ripe enough that you would almost feel guilty not baking with them. Lots of brown speckles, strong banana aroma, and very soft. That is where the flavor lives.
Can I add mix-ins?
Absolutely. Stir in chocolate chips, toasted chopped nuts, or crushed cookies during the last minute of churning, or fold in right before the final freeze for no churn.