Over the past 18 months, everyone has been cooking. Because, well, we've been forced to.

Whether that's as simple as whipping up some boxed cookies (we've all been there) or putting on an eight-hour roast, all this time at home has allowed us to get creative in the kitchen.

Watch the trailer for Mamamia's food podcast, What I Eat When. Post continues below.

Now, with millions of us in lockdown, we thought it was time to compile cooking tips from our favourite celebrity chefs to help improve our culinary skills even more.

From cooking hacks to pantry staples, here's what they shared.

Diana Chan

"Salt is my number one flavour enhancer," the 2017MasterChefwinner shared with Mamamia.

"I never run out of salt, and if I run low, I start to get anxious. Joking, but it’s true - I season practically every dish with salt."

Justine Schofield

"Never throw away champagne, white wine or red wine that has not been drunk at the bottom of the bottle and has oxidised a little," Schofield told Mamamia.

"Place in a container and freeze. It’s always handy when you need just a splash to make a sauce or to add to a lovely French stew."

Poh Ling Yeow