Why is my candy coating not sticking to the apples?
This is almost always wax or moisture. Scrub apples under hot tap water for 20 to 30 seconds each with a clean scrub brush or rough towel, rinse, then dry completely. Chill only after they are fully dry. Also avoid touching the apple surface after washing. Your fingerprints can be surprisingly nonstick.
Why did my candy turn grainy?
Sugar crystals formed on the sides of the pot and seeded the whole batch. Use a clean, heavy pot, stir only until dissolved, and brush down the sides with a wet pastry brush as it heats. Corn syrup also helps a lot.
Do I really need a candy thermometer?
It is the easiest path to success. If you do not have one, use the cold water test: drip a little syrup into ice water. If it forms hard, brittle threads that snap, you are at hard crack.
Why are my candy apples sticky?
Either the syrup did not reach hard crack, or the apples sat in a humid environment. Cook to 300°F (hard crack) and do not go past 305°F. Then store them somewhere cool and dry. On rainy or humid days, the shell can turn tacky faster even when everything is cooked correctly.
What apples are best for candy apples?
I like Granny Smith for that tart snap, but Honeycrisp and Pink Lady are great too. Choose apples that feel heavy for their size and have tight, unwrinkled skins.
Can I make them without corn syrup?
You can, but it is more temperamental. Corn syrup reduces crystallization and keeps the coating smoother. If skipping it, be extra careful about crystals on the pot sides and do not stir once it boils.