Question: how do you make fluffy slime thicker?
Answer: Use around 1 tsp (6.2 g) of extra cornstarch, and stir it into the slime. Cornstarch and glue slime can take a while to combine properly, so keep mixing for up to 5 minutes. If it doesn't thicken, continue adding small amounts of cornstarch to the slime and then mixing it in.