This mug cake combines cookie butter spread, pumpkin and pumpkin pie spice. It's inspired by Trader Joe's new pumpkin pie spice cookie butter, which is one of my favorite sweet treats!
Combine all ingredients into an oversized microwave-safe mug and whisk until batter is completely smooth and no egg streaks remain. Make sure your mug is at least 12 oz, though 16 oz is preferred as the cake will rise significantly while cooking before sinking back down when it's finished.
Cook for approximately 2 minutes and 45 seconds or until cake is no longer wet or gooey. Cake will rise a lot while cooking and then will collapse back down when the microwave stops. Let cake cool a few minutes before eating. You can top with more cookie butter for frosting.
Notes
If you really love pumpkin pie spice add an extra 1/4 teaspoon of the spices to amp up the flavor.
The nutrition information provided are only estimates based on an online nutritional calculator. This is not a comprehensive list of all the nutrients in the recipe (i.e., does not include vitamins, cholesterol, etc). I am not a certified nutritionist. Please consult a nutritionist or doctor for accurate information and any dietary restrictions and concerns you may have.