In a large pot, preheat oil to 350 degrees F. Line a large baking sheet with paper towels. Place a wire rack over top.
In a large bowl, combine Bisquick, water, eggs and sugar. Run a knife through the can of pie filling to cut slices into chunks. Fold apple mixture into the batter. Fold in cinnamon; do not overmix.
Carefully add 1 heaping tablespoon of batter into the hot oil and fry. Only cook 3-4 fritters at a time, for about 3-4 minutes total. Flip with a fork, halfway through cooking. Remove fritters with a slotted spoon. Place on wire rack to cool.
For the glaze:
Combine milk and powdered sugar in a bowl. Whisk well and drizzle over warm fritters.
To substitute Bisquick: Sift 2 cups flour into a bowl. Whisk in 3 teaspoons baking powder and 1/2 teaspoon salt. Cut 1 tablespoon butter into flour mixture until you have pea-sized crumbs.
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