A decadent heart-shaped cookie cake featuring rich brown butter, a soft chewy center, and a luscious vanilla buttercream border. Perfect for Valentine's Day or any special celebration.
1.5sticksunsalted butter (12 TBSP) softened to room temp.
0.75cuplight brown sugar (150 grams)
0.25cupgranulated sugar (50 grams)
1largeegg
2tsppure vanilla extract
2cupsall-purpose flour (240 grams)
1TBSPcornstarch
1tspbaking soda
0.5tspsalt
1.5cupsmini semi-sweet chocolate chips
VANILLA BUTTERCREAM FROSTING
1stickunsalted butter (1/2 cup) softened to room temp.
1.5cupspowdered sugar (180 grams)
1-2TBSPheavy cream or heavy whipping cream
0.5tspvanilla extract
0.125tspsalt
assorted gel food coloring
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Instructions
Prep the Pan and Set Up
Heat your oven to 350°F and line the bottom of a springform pan with parchment paper to ensure the cookie releases cleanly.
Let the butter and egg sit at room temperature until the butter is soft enough to leave a thumb indentation but still looks matte.
Mix the Dough with a Tender Crumb in Mind
In a medium bowl, whisk together the flour, cornstarch, baking soda, and salt until evenly blended.
Cream the softened butter with light brown and granulated sugars in a stand mixer for about 2 minutes until the mixture is light and fluffy.
Beat in the egg and vanilla extract for 30 to 45 seconds until the batter appears glossy and emulsified.
Add the dry ingredients gradually on the lowest speed, stopping immediately once the flour streaks disappear to avoid over-mixing.
Gently fold in the mini chocolate chips until they are scattered evenly throughout the dough.
Shape, Bake, and Cool Properly
Press the dough into an even layer in the springform pan, leaving about a half-inch of space at the edges to allow for natural spreading.
Bake on the center rack at 350°F for 16 minutes until the surface is puffed and the edges show a faint deepening of color.
Place the pan on a wire rack and let it cool completely for at least one hour to allow the cookie to firm up.
Make the Buttercream and Decorate
For the frosting, beat the softened butter for 1 to 2 minutes until it is pale, silky, and smooth.
Mix in the powdered sugar on low speed, then add the heavy cream, vanilla, and salt, mixing until the texture is velvety and pipeable.
Tint the frosting with gel food coloring and pipe a decorative border onto the fully cooled cookie cake using star tips.
Notes
Flavor Secret: Browning the butter before mixing creates a nutty Maillard reaction depth that transforms the cookie base into something extraordinary.High Altitude Adjustments: If baking above 3,000 feet, add 1 tablespoon of flour and slightly reduce the baking soda to help the center set without sinking.Storage Tips: Keep the cake in an airtight container at room temperature for up to 3 days to preserve the soft, chewy texture. Avoid freezing decorated cakes to prevent condensation from dulling the frosting colors.Clean Edges: Run a thin offset spatula around the edges while the cookie is still warm to ensure a clean release from the pan once it has fully cooled.Nutrition information is estimated based on common ingredients and serving sizes and may vary.