Crafting is the way to make a Bucket in Minecraft. T The player will first need one Crafting Table. It can be made by opening your inventory box and placing 4 Wooden Planks into the 2×2 grid located in the top right corner.
Once all of the Wood are placed in the boxes you should see the Crafting Table appear to the right of the Grid. Right click on the crafting table to put the item into your inventory.
If you just made the crafting table then you will need to equip it and place it on the ground by right clicking an open area around you that you would like it to be at. Next the player will need to all the materials for the recipe to be able to Make the Bucket.
Iron Ignot can be made by first crafting 3 Iron Ignot into a empty Bucket. You will then need to take the item and search the Overworld for a Cow or Mooshroom. Once you have found one of the Mobs you need to right click them with the Bucket to be able to fill the bucket with Milk.
Place all 3 items like how it is displayed below into the table:
Now that you have learned how to make a Bucket in Minecraft, you can use it to store Water, Milk, or Lava. Taking the bucket and right-clicking on a patch of water will make it into a Bucket of Water, the same on lava will make a Bucket of Lava. Using the bucket on a Cow will produce a Bucket of Milk