🔥You can ask your cooks to make some Fire for you;
🔥You can win and/or make it in the Liberty;
🔥You can win it in the treasure chests in Robinson's Workshop (Uninhabited Island), the Shipwreck (Pirates Island), the Talking Idol (Shamans Island); Flag of Hope (Flying Island).
🔥Fire can be found while clearing spiky yellow bushes, poppies, and lighted snowballs;
🔥If you don't have the patience to wait until you find or win some Fire, you can visit the Liberty and (in the ingredients to make/multiply fire) buy one for 1 zombuck!