Prep silicone candy flower molds by brushing a small amount of luster dust into the cavities with a small food safe brush. This step is optional, but it gives your chocolate flowers a sheen and helps them to release from the mold.

In a heat safe bowl, melt the white chocolate chips together with the vegetable oil over a pan of barely simmering water, making sure the water doesn't touch the bottom of the bowl. Alternately, you can melt your white chocolate chips with short bursts in the microwave. Stir gently until smooth. Stir in the food coloring a little at a time until your desired shade is achieved.

Transfer the melted chocolate to a piping bag with a narrow round tip or snip the tip off of a disposable piping bag. Alternately, you can use a food grade squeeze bottle with a narrow tip. Fill the cavities of the flower mold. Scrape off any excess chocolate with a small offset spatula. Place the mold in the freezer for a few minutes until set. Turn the mold over and bend it slightly to release the flowers. Repeat the steps until you have about 24-36 flowers.

Preheat the oven to 350ºF (180ºC). Line two large cookie sheets with parchment paper.

In a medium bowl, whisk together the flour, cake flour, salt and baking soda.

In a large bowl, beat the butter, granulated sugar, brown sugar and lemon zest, with an electric mixer at medium speed, until light and fluffy. Beat in the egg and egg yolk in separate additions until well incorporated. Beat in the extracts until combined.

On low speed, beat in the flour mixture just until combined. Fold in the white chocolate chips.

Place 1/4 cup size portions of cookie dough onto the prepared cookie sheet, about 3 inches apart. I used a #20 portion scoop* and I placed 6 cookies on each cookie sheet. Bake one cookie sheet at a time. Bake until the tops of the cookies are set and the bottom edges begin to turn light golden brown, about 10-11 minutes. Do not over bake. Transfer the cookies to a cooling rack to cool completely.

Apply the white chocolate flowers to the cooled cookies with a dab of melted white chocolate.