Pretzels with sour cream

Description
In Romanian: Covrigei cu smantana

Ingredients

 * 1 cup butter,
 * 1 cup sour cream,
 * 3 eggs,
 * 1 teaspoon vanilla,
 * flour as needed,
 * 2-3 tablespoons granulated sugar

Directions

 * 1) Mix everything well with a knife (pastry blender) and refrigerate for 2–3 hours.
 * 2) Then mix again the same way and roll into a 1/2 inch sheet.
 * 3) Using two round cutters, one larger (to cut a circle) and one smaller (to cut inside the resulting circle), cut ring shapes which you then wash with a little egg white and sprinkle with Sugar.
 * 4) Bake at medium heat.