Cafe

You stick cookie dough into an oven, and magically, you get a plate of warm, gooey cookies. Except it's not magic; it's science. Stephanie Warren explains via basic chemistry principles how the dough spreads out, at what temperature we can kill salmonella, and why that intoxicating smell wafting from your oven indicates that the cookies are ready for eating.

In the Leidenfrost Effect, a water droplet will float on a layer of its own vapor if heated to certain temperature. This common cooking phenomenon takes center stage in a series of playful experiments by physicists at the University of Bath, who discovered new and fun means to manipulate the movement of water.

Jack Scalfani shows you the secret to cutting an onion without crying.

Here is a simple trick to make you the boss of the picnic. Create a refreshing watermelon smoothie with essentially no mess in 2 minutes.

Gordon Ramsay shows how to make mayonnaise. His great recipe filmed for the Cookalong Live programme.

Keeping in mind the challenge of mixing food ingredients in micro-gravity, chef Traci Des Jardins concocts a recipe for spicing up astronaut Chris Hadfield's meals on board the International Space Station. Commander Hadfield also shares with Jamie and Adam the foods he misses most after spending six months in space.

A cordless drill is probably the last thing you'd imagine being useful in a kitchen, but over on Make Projects, DIYer Jason Poel Smith shows off how to use a drill to quickly clean dirty pans, as a mixer, cheese grater, and pepper mill attachment.