1.8ozegg, lightly beatenabout 1 large egg without shell
1tspvanilla extract
1.5cupall-purpose flour
1tspbaking soda
0.25tspfine salt
1cupsemisweet chocolate chipsfor ganache filling
0.33cupheavy creamfor ganache filling
0.5tspvanilla extractfor ganache filling
Instructions
Preparation Steps
Heat oven to 350°F. Line two baking sheets with parchment.
Cream butter, peanut butter, granulated sugar, and brown sugar until fluffy, 2–3 minutes.
Beat in the egg and vanilla until smooth and glossy.
Whisk flour, baking soda, and salt in a bowl. Add to the mixer and blend just until a soft dough forms.
Scoop 1-inch portions and roll into balls. Arrange 2 inches apart on the baking sheets.
Flatten each ball gently with a fork in a crosshatch for even thickness.
Bake 9–11 minutes until edges set and centers look soft. Cool 5 minutes, then transfer to a rack.
Warm the cream until steaming. Pour over chocolate chips in a bowl and let sit 2 minutes.
Stir until silky. Mix in vanilla. Let thicken at room temperature until spreadable, about 15 minutes.
Pair cookies by size. Spread or pipe a spoonful of ganache on one and cap with another. Press gently.
Notes
Swap fillings: use 1 cup chocolate-hazelnut spread for a faster sandwich. Or add a pinch of flaky salt on top before baking for a sweet-salty finish. Store sandwiches airtight at room temperature for 2 days or refrigerate up to 1 week; bring to room temp before serving.This recipe is an original creation inspired by classic Easy Peanut Butter Chocolate Sandwich Cookies flavors. All ingredient ratios and instructions are independently developed.