Indulge in the decadent flavors of these Microwave Peanut Butter and Jam Bars—an irresistibly easy dessert or snack that’s ready in under 15 minutes! Featuring a rich peanut butter and brown sugar dough, these bars are layered with your favorite jam or jelly for the perfect balance of sweet and salty. A quick spin in the microwave creates a soft and chewy treat, with optional chocolate chips or nuts adding an extra layer of indulgence. With minimal prep time and no oven required, this recipe is the ultimate convenience for busy bakers craving a homemade delight. Perfect for satisfying sweet tooth cravings, impressing at gatherings, or enjoying as a mid-afternoon pick-me-up, these bars are sure to become a household favorite.
Grease an 8x8-inch microwave-safe dish or line it with parchment paper for easy removal.
In a microwave-safe bowl, melt the butter on high power in 20-second intervals until fully melted.
Add the peanut butter and brown sugar to the melted butter. Microwave for 30 seconds, then stir until the mixture is smooth and combined.
Mix in the vanilla extract and salt. Stir thoroughly.
Gradually add the flour to the mixture, stirring until fully incorporated.
Fold in the rolled oats to add a bit of texture to the dough. If desired, mix in chocolate chips or chopped nuts at this stage.
Press half of the dough evenly into the prepared dish to form the base layer.
Spread the jam or jelly evenly over the base layer, leaving a small border around the edges to prevent overflow.
Crumble the remaining dough over the jam layer, pressing down lightly to ensure it adheres.
Microwave on high power for 4–5 minutes, checking after 4 minutes to avoid overcooking. The bars are done when the edges are firm but the center is slightly soft; it will firm up as it cools.
Allow the dish to cool completely before slicing into bars. This may take about 30 minutes at room temperature.
Serve the bars and enjoy! Store leftovers in an airtight container at room temperature for up to 3 days or refrigerate for up to a week.
Calories |
3874 | ||
|---|---|---|---|
% Daily Value* |
|||
| Total Fat | 188.3 g | 241% | |
| Saturated Fat | 61.2 g | 306% | |
| Polyunsaturated Fat | 0.0 g | ||
| Cholesterol | 124 mg | 41% | |
| Sodium | 2364 mg | 103% | |
| Total Carbohydrate | 501.7 g | 182% | |
| Dietary Fiber | 26.6 g | 95% | |
| Total Sugars | 308.0 g | ||
| Protein | 83.8 g | 168% | |
| Vitamin D | 0.0 mcg | 0% | |
| Calcium | 386 mg | 30% | |
| Iron | 16.2 mg | 90% | |
| Potassium | 2300 mg | 49% | |
*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.