Found this wonderful recipe for apple cider fried donuts on pinterest Just bought a deep fryer and will let you know how they turn out. Recipe follows:
Apple Cider Doughnuts
Adapted from A Bowl of Mush
1 cup apple cider
1 cup sugar
1/4 cup butter (softened)
2 large eggs
1/2 cup buttermilk
3 1/2 to 4* cups all-purpose flour
2 teaspoons baking powder
1 teaspoon baking soda
1/2 teaspoon cinnamon
1/2 teaspoon salt
1/4 teaspoon nutmeg
Vegetable oil for frying (You’ll need a lot!)
1 cup cinnamon and sugar, mixed
The directions start off with boiling the apple cider until it reduces to about a quarter cup in size. I eyeballed it, so it was probably closer to half a cup, and things worked out OK. Allow this to cool completely.
In a large bowl, beat the sugar with the butter until smooth. Beat in the eggs. Add the buttermilk and reduced apple cider. In another bowl, mix together the remaining dry ingredients: flour, baking powder, baking soda, cinnamon, salt and nutmeg.
Add the flour mixture slowly to the liquid mixture, and mix enough to combine. You want the dough to not be sticky any more. You’ll be spreading it out like bread or cookie dough on the counter, so add flour as needed to make it the right consistency. Transfer the dough to a floured board and knead slightly to combine well without over working the dough.
Roll or pat the dough to a 1/2 inch thickness. At this point, you could use two circular cookie cutters (one larger than the other) to create doughnut circles. I just made little doughnut holes instead: use your hands to create small balls of dough.
Place these doughnuts, a few at a time, into a deep pan that’s been filled and heated with enough oil to fill it approximately three inches deep.
Fry a few doughnuts at a time, turning once or twice until they are browned and fully cooked through. Allow the hot doughnuts to drain on some paper towel. While the doughnuts are still warm, coat them in the cinnamon-sugar mixture.