DirectionsPreheat oven to 350. Combine dry ingredients.
Cream butter and sugar until pale and fluffy.
Add yolks, cream and vanilla.
Beat into flour mixture until just combined.
Roll into 2 teaspoon balls, then roll in sugar.
Place 1" apart on parchment lined baking sheets.
Press an indentation in the center of each with the handle of a spoon.
Bake, rotating 1/2 way through, till just set, about 10 minutes.
You may need to re-press indentations.
Let cool, then fill centers with ganache.