01 -
Line two 13×9 baking sheets with parchment paper for easy cleanup.
02 -
In a medium bowl, whisk together the flour, cornstarch, and salt. Set aside.
03 -
In a large mixing bowl, cream together the softened butter, brown sugar, and granulated sugar using a stand mixer or hand mixer. Start at medium speed and gradually increase to medium-high for 2–3 minutes until light and creamy.
04 -
Scrape down the bowl, then mix in the egg yolk, vanilla extract, and almond extract until fully combined.
05 -
Set the mixer to low speed and slowly add the dry ingredients to the wet mixture. Scrape down the bowl as needed to ensure everything is evenly incorporated.
06 -
Using a 1-tablespoon-sized dough scoop, form smooth dough balls by rolling them between your palms. Place each ball 2 inches apart on the prepared baking sheets.
07 -
Gently press a heart shape into the top of each cookie dough ball using your pinky finger or the back of a small spoon. Freeze the trays for 30 minutes (or refrigerate for 1 hour).
08 -
Preheat your oven to 375°F (190°C).
09 -
Microwave the raspberry jam for 10–15 seconds until slightly runny. Using a 1/4 teaspoon or small spoon, fill each heart indent with about 1/2 teaspoon of jam.
10 -
Bake the cookies for 10–12 minutes, or until the edges just start to turn golden brown.
11 -
Let the cookies cool on the baking sheets for 5 minutes, then transfer them to a wire rack to cool completely.