Who says a classic peanut butter and jelly sandwich can’t get even better? This Microwave Mug Peanut Butter and Jelly Sandwich is a quick, gooey delight that’s ready in just 6 minutes. The warm, melty peanut butter pairs perfectly with the sweet, fruity jelly, creating a comforting treat that feels like a hug in a mug. It’s the ultimate solution for those moments when you need something delicious fast.
The soft, fluffy bread soaks up the rich, creamy peanut butter, while the jelly adds a burst of vibrant flavor. Every bite is a perfect balance of textures—smooth, sticky, and slightly chewy. Whether it’s a snack or a mini dessert, this mug sandwich is a nostalgic twist that’s as easy as it is satisfying. Perfect for busy days or late-night cravings!
What You’ll Need

- 2 tablespoons (1 oz/30g) butter (unsalted works best)
- 1 tablespoon peanut butter (creamy or crunchy, your choice)
- 1 tablespoon milk (any type: dairy, almond, oat, etc.)
- 4 tablespoons all-purpose flour (or substitute with gluten-free flour if needed)
- ½ teaspoon baking powder (ensure it’s fresh for best results)
- 1 tablespoon strawberry jam (or any jam or jelly you prefer)
How to Make It
- Melt the butter: Place the butter in a microwave-safe mug and heat for about 20 seconds, or until just melted.
- Mix the batter: Add the peanut butter, milk, flour, and baking powder to the mug. Stir well with a fork until just combined. Avoid overmixing.
- Add the jam: Spoon the strawberry jam into the center of the batter, pressing it down slightly for a gooey middle.
- Microwave: Cook in the microwave for 45 seconds to 1 minute, or until the top is firm. Tip: Cooking times may vary based on your microwave’s wattage, so keep an eye on it to prevent overflow or overcooking.
- Serve: Let it cool for a minute or enjoy it warm straight from the mug!
Creative Toppings and Swaps
Take your mug PB&J to the next level with fun toppings like a drizzle of honey, a sprinkle of crushed nuts, or a dollop of whipped cream. Swap the strawberry jam for raspberry, blueberry, or even chocolate spread for a twist. Feeling adventurous? Add a pinch of cinnamon or a few chocolate chips to the batter for extra flavor!
Perfect Pairings for Your Mug Treat
Enjoy your Microwave Mug Peanut Butter and Jelly Sandwich with a glass of cold milk or a cup of coffee for a cozy snack. For a mini dessert spread, pair it with fresh fruit like banana slices or a handful of berries. It’s the ultimate quick indulgence!
Quick Tips for Microwave Success
To avoid overflow, use a larger mug and stop the microwave halfway to check the consistency. If your microwave is less powerful, add 10-15 seconds to the cooking time. Pro tip: Let it cool for a minute before digging in to avoid burning your tongue!
Easy Storage and Reheating
If you have leftovers (unlikely!), store them in an airtight container at room temperature for up to a day. Reheat in the microwave for 10-15 seconds to enjoy it warm again. Fresh is best, though, so make it on the spot whenever possible!

Microwave Mug Peanut Butter and Jelly Sandwich
Ingredients
- 2 tablespoons butter 1oz/30g
- 1 tablespoon peanut butter
- 1 tablespoon milk
- 4 tablespoons all-purpose flour
- ½ teaspoon baking powder
- 1 tablespoon Strawberry jam
Instructions
- Place butter into a microwavable mug and heat until just melted. (roughly 20 seconds)
- Add in the remaining ingredients; mix well with a fork until just combined
- Once the batter is mixed place the spoonful of jam down into the batter to get a jammy center
- Microwave for 45 seconds – 1 minute or until is firm on top. (Cooking time is based on my 1200W Panasonic Inverter Microwave so your timing might vary). Always keep a close eye on your mug while in the microwave so it doesn’t over flow or over cook.
- Let it cool or enjoy it straight away!