Meaty beef gravy

I’ve made this a dozen times but haven’t taken any pics of my own but it’s from a website. My dad made this as a kid and told me it was apparently a popular field kitchen meal during ww2, pretty cheap too here is how I make it

1lb ground beef
About 600ml water
Corn starch
1 to 2 beef oxo cubes
Thyme

1.fry up the beef
2.add the water and the cubes, depending on your preference add 1 or 2 cubes

3.throw in some corn starch to thicken up the gravy, it should thicken up after hitting a boil too

4.add in the seasoning, I use thyme but add whatever you want and your done

This goes really good on fries or whatever you want to add it too. It’s pretty cheap to make with the ground beef the most expensive ingredient. Last time I made it I spent about $10