Dice your apples, place in a bowl and add lemon juice. This will prevent the apples from browning.
In a large bowl, whisk eggs. Add milk, vanilla, and cooled melted butter (don't add it hot, you'll cook your eggs!) Whisk together with a fork until it is all combined.
In another medium sized bowl, combine the flour, sugar, baking powder, cinnamon, salt, nutmeg, and ground ginger.
Add dry ingredients to wet and mix well until a loose dough is formed. Fold in the apples.
Fill a frying pan or sauce pan with about 3-4 cups of oil or so that you have about 3-4 inches of oil in your pan. Heat oil over medium heat until the oil reaches 375°F with a candy thermometer or an instant read thermometer. If you don't have a thermometer, use the wooden spoon test (see notes).
Use a measuring cup to drop batter into oil, 1/4 cup or 1/3 cup. Fry until the outside is golden brown. Flip and fry other side until golden brown, for a total of about 4-5 minutes. You'll know they're done if you insert a small knife into the center and it comes clean. If not, fry a little longer so that the center is fully cooked. This time will depend on the size of your fritter.
Use a slotted spoon to transfer to a paper towel-lined cooling rack and let cool. Repeat with all the batter.