Creating Old-Fashioned Sour Cream Doughnuts is straightforward, thanks to these simple steps:

1. Prepare the Frying Oil: In a deep pot, heat about 3-4 inches of oil to 375°F (190°C).
2. Combine Dry Ingredients: In a large mixing bowl, whisk together the flour, sugar, baking powder, baking soda, salt, and nutmeg.
3. Mix Wet Ingredients: In another bowl, combine the sour cream, eggs, vanilla extract, and melted butter. Whisk until smooth.
4. Combine Mixtures: Gradually add the wet ingredients to the dry ingredients. Stir until just combined. Do not overmix; a few lumps are okay.
5. Chill the Dough: Cover the bowl with plastic wrap and refrigerate the dough for about 30 minutes to firm it slightly.
6. Roll Out the Dough: On a floured surface, roll out the chilled dough to about ½-inch thickness.
7. Cut the Doughnuts: Use a doughnut cutter or two round cookie cutters to cut out the doughnuts. Make sure you cut the holes out in the center.
8. Fry the Doughnuts: Carefully place a few doughnuts in the hot oil. Fry for about 2-3 minutes on each side, until golden brown.
9. Drain the Doughnuts: Once cooked, use a slotted spoon to remove them from the oil. Place onto paper towels to drain excess oil.
10. Add Toppings: While still warm, you can sprinkle with powdered sugar or dip them in a simple glaze made from powdered sugar and milk.

These steps will guide you in creating mouthwatering Old-Fashioned Sour Cream Doughnuts that everyone will love!