furnace.addRecipe(<minecraft:bread>, <simpleupgrades:item_dough>);
furnace.addRecipe(<minecraft:nether_star>, <extrautils2:CompressedCobblestone:7>);

furnace.remove(<pearcelmod:pearcel_charcoal_block>);
furnace.addRecipe(<pearcelmod:neutral_pearcel_matter>,<pearcelmod:pearcel_block>);