Heart blocks are an item that was added in the Java Edition 1.16 update of Minecraft. They can be used to craft a heart banner pattern, as well as to trade with Piglin and Trader villagers. To craft a heart block, you’ll need 4 leather. Place the leather in any shape in the crafting table to make a heart block. You can then place the heart block wherever you see fit in the game. You can also use the heart block to create various items in Minecraft, such as Heart Canes, Heart Candles, etc. To craft these items, you can find the recipes in your inventory. To make a heart banner, you’ll need either a heart block or four red dye. First, make a banner by placing the wool in the crafting table. Then, put the heart block or dye in the center square of the banner to create a heart banner pattern. You can then equip the banner in your offhand and it will appear in your hand.