Sift together the dry ingredients in a small bowl, and mix until combined.
Whisk together the butter and sugar until sandy,
Whisk in the egg yolks, one at a time, until fluffy,
Mix in the vanilla extract until incorporated.
Mix in the dry ingredients, alternating with the sour cream until combined.
Wrap in plastic wrap, and refrigerate for 1 hour.
On a floured surface, form the dough into a ball.
Roll out the dough to a 1/2 inch thickness.
Cut the donuts, (re-roll to make as many donuts as possible).
Place the donuts on a floured baking sheet, cover, and chill the donuts for 20 minutes.
Heat the oil in a frying vessel to 375°F.
Fry the donuts on medium-low heat for 2-3 minutes per side until golden brown.
Place the donuts on a paper towel lined plate to drain.
Transfer to a wire rack to cool completely.
Sift the powdered sugar in a bowl.
Whisk together all of the ingredients for the glaze until smooth.
Submerge the donuts in the glaze, and let the excess drip off.
Place the glazed donuts on a wire rack to set for at least 1 hour.
Enjoy!
Old-Fashioned Sour Cream Glazed Doughnuts https://www.closethecooks.com/2020/03/27/old-fashioned-sour-cream-glazed-donuts/ March 27, 2020