Here is the recipe i have for my apple juice.

GameRegistry.addShapelessRecipe(new ItemStack(PreInit.apple_juice, 1), new Object[]{PreInit.blender, Items.apple});

Down below is my ITemBlender, I think it's not working because it's not knowing what "Stack" is, so it's returning nothing, I need to figure out how to set "Stack" to my PreInit.Blender

package com.rbs.slurpiesdongles.items;

import com.rbs.slurpiesdongles.lib.PreInit;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.world.World;

/**
 * Created by RedBu on 3/16/2016.
 */
public class ItemBlender extends Item {

    public boolean hasContainerItem(ItemStack Stack){

        return true;
    }

    public ItemStack getContainerItem(ItemStack Stack){

        return Stack;
    }


}