Charles Viancin Double Boiler Insert

Why It's Cool: Easy to store, easy to empty, can be used in microwave, oven or on stovetop

There are certain times when you really need a double boiler--any time when what you’re cooking is too delicate for direct heat. Melting chocolate or butter are only two examples; my super easy zabaglione from my single days (for each person use 1 egg yolk, ½ egg shell full of sugar, and ½ egg shell full of marsala, and whisk for a long time--until doubled in volume--in a double boiler over simmering water; serve over fresh strawberries) is another.

The function of a double boiler is necessary in any well-equipped kitchen, but the downsides are that it takes up a lot of space, it can be used only on a cooktop and the shape usually makes it difficult to get all of whatever you’re cooking in it, out of it … even with the best spatula skills. Well, not anymore….

Charles Viancin, one of our favorite creative product designers, has re-thought the double boiler. He’s made it from his favorite material: silicone. This has several advantages: 1) it’s flexible and can be rolled up and stashed away in very little space when it’s not in use; 2) it can be used on the cooktop, or in the microwave, or in the oven--it’s a versatile little guy; and 3) because of the smooth rounded shape and slick interior, it releases all its contents easily, so that there’s no waste.

This has become our go-to vessel for melting butter or chocolate in the microwave, as well as for many other uses. Another Cool Tool from Charles Viancin!


  • BPA-Free food grade silicone
  • Flexible handles on the top
  • 7"/18cm diameter, 3"/7.6cm tall
  • Microwave, Oven and dishwasher safe
  • Rolls up for easy storage
  • Use for steaming, reheating and as a double boiler
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