Variant of a Lava Flow, which is in turn a variant of a pina colada with strawberry puree added. This one has mango puree in it as well.
There's lots of recipes on the web for Lava Flows, most of them call for banana. DON'T. It overpowers everything else. Wave the banana at the blender and then put it back in the fruit bowl.
I'm still playing around with my personal recipe, it's not quite "there" yet but the gist is:
1 cup or so Semi-frozen strawberries and coconut milk pureed in a blender
Semi-frozen mango, ditto with the milk/blender. These should both be able to be poured slowly, not too thick/thin. I'm tempted to try this with raspberries as well--raspberry/mango sounds intriguing.
1 cup of frozen pineapple
One small can of Dole pineapple juice (fresh is better if you have it). I think they're 6 oz.
~ 1/2 pint of vanilla ice cream
Coconut cream or coconut milk--cream is heavier, richer and sweeter, but I don't like the way it blends, and the cans are an inconvenient serving size. I use coconut milk, the exact amount I'm still working out, but then add sugar. About 1/8 cup right now, more if you want it sweeter.
1 1/2 ounces coconut rum, and 1 1/2 ounces dark rum. Warning: I use Koloa rum--their coconut rum is 40% ABV, stuff like Malibu is about half that alcohol-wise. Also, the Koloa dark has a very strong note of vanilla that works well with this. Careful with substitutions.
Throw in some ice and blend. Add ice and keep blending until it's your desired thickness.
While you're slowly pouring that into a glass, also pour in the strawberry and/or mango. Since I don't have three hands to hold all of them at once and had to swap around, it didn't "flow" around the sides and turn out as pretty as it usually does, but stir it a little with the straw and it will.
This will produce 3-4 good sized drinks, not too stiff so good for lightweights. If you want stronger ones, use some 151. Too much liquid dilutes the mix, requiring more ice, and then you lose flavor. A little coconut extract might fix that; I don't have any on hand. I think I'll order a bottle and try it--sacrifices must be made in the name of alcoholic science, yo!
"Boat drinks" like this are not technically considered "Tiki", but eh. They're tasty
I'll post a "real" recipe when I get the proportions sorted.