INGREDIENTS
1/4 cup
Butter (Unsalted, Room temperature)
1/3 cup
Sugar (Granulated )
1
Egg yolk (From large egg)
1 tbsp
Full fat sour cream (OR greek yogurt OR cream cheese)
1/2 tbsp
Vanilla extract
1 cup
All-purpose flour
1/8 tsp
Salt
1/8 tsp
Baking powder