Pre-heat the oven to 180 degrees. Prepare the baking tray by lining with baking parchment.
Add the butter in a bowl, it shouldn’t be too soft or too hard.
Add icing sugar, corn flour, all-purpose flour. Bring everything together to make a dough.
Now make small bowls out of it. Lay down on a baking tray. Press the balls with the help of a fork.
Bake for 10-12 min. Take them out of the oven, let it rest on the baking tray itself for minimum 20 minutes and then place them on a cooling rack.
Spread the jam and the buttercream frosting on the cookies and join the two. Your Kissing cookies are ready.