Follow these three simple steps to make a furnace in Minecraft; step two will interest you the most.
1. Get the crafting menu open: Create your 3×3 crafting grid by opening the crafting table.
2. Place items in the grid to make furnace: After you must have opened your 3×3 grid in the crafting table, you have to place some specific items in the grid so that you will be able to achieve your aim. There are actually two patterns by which you can place your items, but make sure you arrange them in the correct way.
3. If you want to go with the first pattern, the recipes you would be using are eight cobblestones. The eight cobblestones are placed in the grid, leaving the center square empty.
4. The second pattern would also work perfectly when you use eight Blackstone as your crafting recipe. You will also place the eight Blackstone in the grid, leaving the center box empty.
5. You will see your furnace at the right side of the grid, move it to the inventory.