Cute game! Loving the visuals, but I kind of wish there was more of the "cookie" theme incorporated. Yes, we are betting with cookies, but it would be cool to see something like a bakery-themed casino etc.
I have to agree with takshi-san, there isn't a huge risk here, I could get steady gains of 3x cookies. Although there's risk in not knowing when they will burn, I think it would be more engaging if we had some information to go off of. After that initial state of figuring out that 3x is a safe zone, it can get kind of repetitive for players who tend to play safely.
Overall though nicely made game! Easy to navigate, intuitive to play, and fun to look at :) Please take a look at my game if you have the time!