Marmite is a sticky, brown spread that you put on your toast, similar to peanut butter or jelly. It's a food that comes from New Zealand and is made from yeast extract.
Marmite is made by taking some special yeast and letting it ferment for a little while. Fermenting is when you leave something out for a bit and let it change. Like when you leave fruit on the counter for a few days and it starts to smell different!
After the yeast has fermented, it's heated and mixed with some other yummy things like spices and vegetables. Finally, it's put into jars so you can spread it on your toast or use it for cooking.
Some people really love the way marmite tastes, but other people think it's gross! It has a really strong, salty flavor that can be an acquired taste. But for those who love it, they can't imagine eating toast without it.
So, if you're ever in New Zealand, make sure to try some marmite on your toast and see if you like it!