Heat oven to 375°F.

Lightly grease cookie sheet with shortening.

In large bowl, stir ½ cup powdered sugar, the cream cheese, butter, shortening, vanilla and egg yolk with spoon until well blended.

Stir in Bisquick mix until dough forms.

Divide dough in half.

On work surface sprinkled with additional powdered sugar, roll one-half of dough until ¼ inch thick.

Cut with 2-inch flower-shaped cookie cutter (or desired shape).

On cookie sheet, place cutouts 1 inch apart (use metal spatula to transfer from work surface to cookie sheet).

Repeat with remaining dough.

Bake 6 to 8 minutes or until edges are light golden brown.

Cool 2 minutes; carefully remove from cookie sheet to cooling rack.

Cool completely before frosting.