From Woman' Day, a simple and fun to make, these holes are irresistible—and wonderfully adaptable. Omit the jam when you want a less-sweet snack, or, when craving an indulgent dessert, skip the cinnamon and roll them in sweetened cocoa powder.
In a bowl, combine the sugar and cinnamon; set aside.
Heat the oil in a 10-in. skillet over medium-low heat. While the oil is heating, form the doughnuts. Separate dough into 8 biscuits and flatten them into 3 1/4-in. rounds. Using a 1 1/2-in. round cookie cutter, cut 3 circles from each round. With sharp knife, slice horizontally (parallel to cutting board) through centers--do not cut all the way through--and open like a book. Spoon 1/4 tsp jelly onto one side, fold dough over and pinch edges to seal. After assembling 8 holes, test the oil with a scrap of dough.
Working in batches, fry holes until golden brown, about 1 to 1 1/2 minutes per side; transfer to a paper towel--lined plate. While doughnuts are still warm, toss them in the cinnamon-sugar mixture. Serve warm or at room temperature.
Using a 1-in. round cookie cutter, cut out center of each biscuit (reserve the center dough for "holes"). Fry doughnuts and holes, then coat with cinnamon-sugar.
Omit the cinnamon-sugar mixture, and, in a medium bowl, stir together 1 cup confectioners' sugar, 1/4 cup unsweetened cocoa powder, 3 Tbsp melted butter and 2 to 3 Tbsp water until smooth. After frying, dip top half of doughnuts in glaze; refrigerate until set. Serve at room temperature.
For full-size jelly doughnuts: Use 1 can buttermilk biscuits and slice centers of biscuits as directed. Fill each with 1 tsp jelly; pinch edges to seal. Fry and coat in cinnamon-sugar.