I've had just as good of luck by using a standard wire pet cage. No bedding, just food and water in the cage along with a roost pole and set it so that air can flow under it at all times. Set it up on blocks or bricks. I set her so she is in with her flock, they can see her and her them. The important thing is that you have to have air flowing under her at all times. No drafts, just air, so you can set her in your coop or hang the cage. It takes about 3 days to break the behavior. If you take her out of the pen and put her with the flock and she immediately start clucking softly and fluffing herself up, back in the cage for another day or two and try again.
As posted, be prepared for her to go broody again in a month or so. Those hormones cannot be denied once they start working so you will be faced with breaking her again, getting her some eggs to set (they will be happy with 2-3) or if you do not want a broody, trade her for one who isn't. Many people would kill for a broody hen.
As for 'making' a hen go broody, it's a matter of debate if that works or not. BUT I have been able to get my Buff Orpington hens to go broody by putting a pile of fake eggs in a nest and just leaving them there. It switches them on like a light. I've seen it work twice for my hens. Generally,@Puranin, it's 21 days to hatch chicken eggs. Bantams can hatch in 19 to 20 days. Sometimes a stray chick will hatch at 22 or 23 days but that is risky as the hen generally leaves the nest when the first chick hatched is 36-48 hours old and will abandon any unhatched eggs in favor of the babies that need her care. It's very important to set all of your eggs at once. I have added an egg or two at 24 hours but even that is taking a chance of a staggered hatch.
Please feel free to ask questions. We all love to help.
And welcome to BYC!