01 -
Line two 13x9-inch baking sheets with parchment paper for easy cleanup.
02 -
In a medium bowl, whisk together all-purpose flour, cornstarch, and salt. Set aside.
03 -
In a large bowl or stand mixer, beat softened butter with granulated and brown sugars on medium speed, gradually increasing to medium-high for 2-3 minutes until light and creamy.
04 -
Scrape down the bowl, then blend in the egg yolk, vanilla extract, and almond extract until fully incorporated.
05 -
On low speed, gradually mix the dry ingredients into the wet mixture until a smooth dough forms, scraping the bowl as needed.
06 -
Using a 1-tablespoon scoop, portion dough and roll into smooth balls without cracks.
07 -
Place dough balls 2 inches apart on prepared sheets. Press a heart shape into the top of each using a pinky finger or small spoon. Chill in freezer for 30 minutes or refrigerator for 1 hour to prevent spreading.
08 -
Remove dough from chill and preheat oven to 375°F (190°C).
09 -
Warm raspberry jam in a small microwave-safe bowl for 10–15 seconds until slightly runny. Fill each heart indentation with approximately 1/2 teaspoon jam.
10 -
Bake cookies on the center rack for 10-12 minutes, or until the edges begin to turn golden brown.
11 -
Allow cookies to cool on baking sheets for 5 minutes before transferring to a wire rack to cool completely.