In a large bowl, combine the flour, sugar, baking soda, and salt. Set the mixture aside.
In another bowl, whisk the eggs together with the milk and sour cream. Next, combine the wet ingredients with the dry ingredients.
Work the dough with your hands until you get an even, smooth consistency. Set the dough aside to rest for 15 minutes.
Preheat a deep skillet with oil over medium-low heat. While the oil is heating, roll the dough out into a flat piece and slice it into long, 1-inch thick strips.
Slice the strips horizontally to where they are about 4 inches in length. Next, slice a slit into the center of each strip. To form the cookie, take one end of the strip and insert it through the slit.
Fry the cookies in small batches until they turn a slight shade of golden brown.
Remove the cookies from the oil and place them on a plate lined with paper towels. Dust each cookie with powdered sugar. Enjoy!