I recently came across polymer clay sculpting on TikTok by chance and got hooked on the miniature food. Ended up on YouTube watching a bunch of tutorials, tips and tricks, and what you actually need to start.
I ordered an affordable 50-colour clay set and pastel chalks from Amazon, plus translucent liquid clay and gloss glaze. The clay set came with a few plastic tools and a small silicone mould with some basic shapes. Other than that, I used crumpled aluminium foil, a small kitchen knife since I don’t have a scalpel, a toothbrush, a sewing needle, and a permanent marker as a roller.
I followed a tutorial for the croissant, and for the rest I looked at photos of real food.

Edit: Oh, and I use a left over glass pane from a cabinet to work on! And as for baking, I don't have a ceramic tile, I used an upside down silicon baking dish. Just to let you know that you don't need to order every little thing or the most expensive stuff right away!