Clean apples are your friend when making any coated apples! This means not just clean, but entirely without any waxy coating or moisture of any sort. Boiling water helps melt the common waxy layer on the outside of store-bought apples. Rubbing them vigorously helps remove all the wax, but don't be surprised if you notice the apples going a little brown after this step! This is a common result of removing the wax, but it will not affect the apples or the finished results, I promise!
Dry really thoroughly! Any moisture remaining on the apples will turn to steam once dipped in the sugar, creating bubbles and spoiling the beautiful smooth, glass-like finish. Check the top and bottom, where there are spaces for water to sit unnoticed.
Ensure the sticks used are really well anchored in the apples. These are what you will be holding when dipping the apples, so really important that they don't slip!
Putting the lid on when dissolving the sugar helps with not needing to brush down the sides of the pan as the water drips back down off the lid. This makes dissolving the sugar soooooo much easier than without a lid, trust me!
Once you start bubbling the sugar mixture, avoid stirring at all costs! Even adding in the extra ingredients, just swirl them through and then brush down the sides with the wet pastry brush and all will be well.
Remember when dipping the apples that hot sugar can burn badly. Please be very careful and ensure the pan is resting on a secure, flat surface and that you have a good grip on the pan handle as well as the apple stick.
If the candy mixture gets too cool and thicker, making it harder to coat the apples, just reheat it gently again until it is liquid enough to work with. Remember if you reheat it that you must allow time for the bubbles to dissipate to avoid having bubbles trapped on the apple coating.