Ultra-Tropical Piña Colada
DANIEL GRITZER, http://www.seriouseats.com/

A good piña colada should instantly transport you to warm sandy beaches and turquoise waters. What we don't want is a drink that tastes weak and watery, nor artificially tropical, as if someone dumped a bottle of tanning oil into the blender. This version produces a slushy frozen cocktail full of ripe pineapple and rich coconut flavor. Plus a good, strong hit of rum.
Why It Works:
Freezing the ingredients first means you can use less ice, leading to a more flavorful, less diluted drink.
Ripe fresh pineapple or canned pineapple chunks are more flavorful than pineapple juice, plus their fiber helps thicken the drink.
Coconut cream has a more natural flavor than Coco Lopez.
Measuring solids by weight gives you better control over the ingredient ratios.
5 ounces (140g) very ripe peeled and cored pineapple or drained canned pineapple chunks (see note)
1 3/4 ounces (50ml) unsweetened coconut cream, shaken or stirred well to incorporate fat
1 ounce (30ml) simple syrup (see note)
3/4 to 1 ounce (20-30ml) fresh juice from 1 lime
2 1/2 ounces (75ml) white or gold rum, kept in freezer until freezer-cold
4 ounces (115g) ice cubes
Pineapple slice and/or maraschino cherry, for garnish
Paper umbrella and straw, for serving (optional)
In an airtight plastic container, combine pineapple, coconut cream, simple syrup, and 3/4 ounce lime juice, and transfer to freezer until frozen, at least one hour (the sugar in the mixture may prevent it from freezing solid; this is okay).
In a blender, combine frozen pineapple mixture with ice-cold rum and ice and blend until thick and slushy. Taste, then blend in the remaining 1/4 ounce lime juice, if desired. Pour into a large glass, garnish with pineapple and/or a cherry, and serve, with or without an paper umbrella and straw.
If you want to make multiple drinks, you can pre-batch up to a double recipe (a blender may not hold much more than that easily) in a single container, then divide after blending; for more than two drinks, use separate containers to hold more servings.
Notes: If you can find truly ripe and sweet fresh pineapple, that will give you the best flavor. If not, your next best bet is to use the drained diced pineapple from a can. To make simple syrup, combine equal volumes of granulated sugar and water, then stir until sugar is completely dissolved; extra simple syrup can be refrigerated in an airtight container for up to 1 month.
YIELD: Makes one large drink