4.8 from 54 votes
Peanut Butter Cookie in a Mug
The Peanut Butter Cookie in a Mug offers a single-serving, microwave-made treat mixing melted butter, creamy peanut butter, maple syrup, egg yolk, vanilla, flour, and sea salt. This quick batter has a thinner consistency than traditional dough but bakes rapidly to a soft, warm cookie with rich peanut flavor. Optional chocolate chips can be added before microwaving for extra sweetness.
Prep Time
3 mins
Cook Time
1 min
Total Time
4 mins
Servings:
1
Cookie
Calories:
622 kcal
Course:
Dessert
Cuisine:
American
Ingredients
- 1 Tbsp butter unsalted
- 3 Tbsp peanut butter creamy
- 2 Tbsp pure maple syrup
- 1 egg yolk
- ½ tsp vanilla extract pure
- 2 ½ Tbsp all-purpose flour gluten-free or regular
- ⅛ tsp salt sea salt
Instructions
- Microwave the butter in a microwave-safe mug for 20 to 40 seconds, or until it has melted. Note: I prepare the cookie dough in a small bowl or a measuring cup first and then use a rubber spatula to transfer it over to a microwave-safe mug or ramekin. You can easily just use a mug for the whole process, which requires less cleanup.
- Add the peanut butter, pure maple syrup, egg yolk, and vanilla extract and mix well until everything is well-combined (wet ingredients). Note: If your peanut butter is very cold from having been sitting in the refrigerator, microwave it along with the butter to soften it up so that it stirs easily.
- Stir in the gluten-free all-purpose flour and sea salt (dry ingredients) and mix until a smooth batter forms. The mixture will be relatively thin and will not resemble regular cookie dough - this is normal! If you’d like, sprinkle the top with chocolate chips or mix some chocolate chips into the cookie dough.
- Microwave on high heat (the microwave’s default setting) for 45 to 60 seconds, or until it has set up. I recommend starting with 45 seconds then microwaving longer only if need be. Allow the mug to cool down for a minute or two before enjoying the peanut butter cookie - initially it will be very hot! The texture will look slightly crumbly but the cookie will melt in your mouth. Consider serving microwave peanut butter cookies with a scoop of ice cream or a glass of milk.
Cup of Yum
Notes
- Butter can be substituted with coconut oil, vegan butter alternatives, or avocado oil for dietary preferences.
- If peanut butter is cold and firm, warming it with the butter helps with mixing.
Nutrition Information
Serving
1cookie
Calories
622kcal
(31%)
Carbohydrates
55g
(18%)
Protein
15g
(30%)
Fat
40g
(62%)
Saturated Fat
14g
(70%)
Polyunsaturated Fat
1g
(6%)
Monounsaturated Fat
5g
(25%)
Cholesterol
215mg
(72%)
Sodium
223mg
(9%)
Fiber
6g
(24%)
Sugar
31g
(62%)
Nutrition Facts
Serving: 1 Cookie
Amount Per Serving
Calories 622
% Daily Value*
| Serving | 1cookie | |
| Calories | 622kcal | 31% |
| Carbohydrates | 55g | 18% |
| Protein | 15g | 30% |
| Fat | 40g | 62% |
| Saturated Fat | 14g | 70% |
| Polyunsaturated Fat | 1g | 6% |
| Monounsaturated Fat | 5g | 25% |
| Cholesterol | 215mg | 72% |
| Sodium | 223mg | 9% |
| Fiber | 6g | 24% |
| Sugar | 31g | 62% |
* Percent Daily Values are based on a 2,000 calorie diet.