One-Bowl Peanut Butter and Banana Blondies
Chewy blondies bursting with peanut butter and ripe banana, made effortlessly in one bowl for a quick and satisfying dessert. This american-inspired desserts ready in about 40 minutes pairs (about 2 medium) ripe mashed banana, creamy peanut butter, brown sugar for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 180 calories and feeds 12, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart.
Ingredients
- 1 cup (about 2 medium) ripe mashed banana
- 1/2 cup creamy peanut butter
- 3/4 cup brown sugar
- 1/4 cup unsalted butter, melted
- 1 large egg
- 1 tsp vanilla extract
- 1 cup all-purpose flour
- 1/2 tsp baking powder
- 1/4 tsp salt
- 1/4 cup chopped peanuts
Instructions
- Step 1: Preheat oven to 350°F and grease an 8x8-inch baking pan. In a large mixing bowl, combine 1 cup ripe mashed banana, 1/2 cup creamy peanut butter, 3/4 cup brown sugar, and 1/4 cup melted unsalted butter. Stir until smooth.
- Step 2: Beat in 1 large egg and 1 tsp vanilla extract until fully incorporated.
- Step 3: In a separate small bowl, whisk together 1 cup all-purpose flour, 1/2 tsp baking powder, and 1/4 tsp salt.
- Step 4: Gradually add the dry ingredients to the wet banana mixture, folding gently until just combined. Fold in 1/4 cup chopped peanuts for crunch.
- Step 5: Spread the batter evenly into the prepared pan and bake for 25-30 minutes until the edges are golden and a toothpick inserted in the center comes out clean.
- Step 6: Cool completely in the pan before cutting into 12 squares and serving.
Frequently asked questions
How long does One-Bowl Peanut Butter and Banana Blondies take to make?
Total time is about 40 minutes (10 min prep + 30 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.
How do I store leftover One-Bowl Peanut Butter and Banana Blondies?
Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep creamy peanut butter from drying out.
Can I substitute ingredients in One-Bowl Peanut Butter and Banana Blondies?
Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.
How do I scale One-Bowl Peanut Butter and Banana Blondies for a different number of people?
The recipe is written for 12 servings. Multiply each ingredient by (your serving target / 12). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.
What goes well with One-Bowl Peanut Butter and Banana Blondies?
American desserts like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.
