Sift together the first 4 ingredients into large bowl. In separate bowl, whisk together the eggs, milk, and vanilla extract. Now, pour the egg mixture into the flour mixture and whisk gently just to combine. Cover and let batter chill for 30 minutes. Meanwhile peel and cut your apples.
To fry the fritters, heat a pot no more than halfway filled with canola oil to 350ºf. Dip each apple ring in the fritter batter, pull out and let some excess batter drip back into the bowl, and gently put in the frying oil. Fry in small batches of only 3 fritters at a time for about 2 minutes or until medium golden brown. Drain briefly and coat with either cinnamon sugar or powdered sugar. Makes about 18 fritters.