A bagel is almost the most simplistic piece of food you can make but there are still tips but first you put it in a toaster and wait.
if you want your bagel to be softer put it in for less time
if you want it harder put it in longer
And thats eveything you need to know.
Oh i've just had some more intel there are recipes for bagels so I'll leave link if you want to make some
https://sallysbakingaddiction.com/homemade-bagels/