01 -
Preheat oven to 325°F. In a medium bowl, sift together the all-purpose flour, cornstarch, baking powder, and lemon zest to aerate and combine. Set aside.
02 -
In a large mixing bowl, beat the room-temperature butter, shortening, and granulated sugar on medium-high speed for 3-4 minutes until the mixture is very light, fluffy, and pale, scraping the bowl as needed.
03 -
Add the egg, vanilla extract, and almond extract to the creamed mixture. Beat on medium speed for 1-2 minutes until the mixture is thoroughly combined, light, and smooth.
04 -
Mix the sifted dry ingredients into the wet mixture in 2-3 additions on low speed. Mix just until combined and no dry streaks remain to avoid overdeveloping gluten. If dough appears too soft, refrigerate for 15-20 minutes to firm slightly.
05 -
On a lightly floured surface, roll dough to 1/4 inch thickness. Cut with bunny-shaped cookie cutters and place onto parchment-lined baking sheets, leaving 1 inch between cookies.
06 -
Bake at 325°F for 9-10 minutes, until edges are set but cookies remain pale. Cool on the baking sheet for 5 minutes, then transfer to wire racks to cool completely.
07 -
In a clean mixing bowl, beat softened butter on medium speed for 1-2 minutes until creamy and smooth. Gradually add sifted powdered sugar in 3-4 additions, mixing on low speed after each. Add vanilla extract and milk, one tablespoon at a time, mixing between each addition until frosting is smooth and spreadable.
08 -
Transfer buttercream to piping bags with desired tips. Pipe frosting onto cooled cookies to create bunny shapes, fill in ears and faces. Decorate with sugar sprinkles and place black sugar pearls for the eyes. Let set at room temperature for 30 minutes before serving or storing.