Sift together the cake flour and almond flour.

Put the softened butter and sugar in a bowl and mix.

Add the egg yolk to the bowl in Step 2 and mix.

Add the dry ingredients from Step 1 to the bowl in Step 3 and mix with a spatula to bring the dough together.

Wrap in plastic wrap and rest in the refrigerator for about 2 hours. You can make the dough the day before.

Sandwich the dough between two sheets of plastic wrap and use a rolling pin to roll it out to about 2 mm thick.

Using cookie cutters, first cut shapes from the center of the cookies, then cut out the edges. If the dough is too soft, dust with flour.

Bake for about 15-17 minutes in an oven pre-heated to 355°F/180°C. The photo shows cookies that I stacked after baking.

You can refer to this recipe to make the buttercream.

https://cookpad.wasmer.app/us/recipes/153868-delicious-buttercream

Spread the buttercream on the bottom cookie and then put some of the jam on top.

Add another cookie to make a sandwich and it's done...these make cute presents.