Bake 9–11 minutes until edges set and tops look matte. Cool 10 minutes, then move to a rack.
Warm cream in a small saucepan until steaming. Pour over ganache chips, butter, and a pinch of salt in a bowl.
Let stand 2 minutes, then stir until smooth. Cool 10–15 minutes until thick enough to spread.
Swirl ganache over fully cooled cookies. Let set before serving.
Notes
For a mocha twist, whisk 1/2 tsp espresso powder into the dough. Or finish with a pinch of flaky salt on the ganache. Store cookies covered at room temperature for 2–3 days, or refrigerate up to 1 week.This recipe is an original creation inspired by classic Easy Crumbl Chocolate Cake Cookies flavors. All ingredient ratios and instructions are independently developed.