
This warm and golden grilled peanut butter banana sandwich is one of those sweet little dishes that never fails to comfort. I came up with it during a rushed morning when we were out of cereal and have made it dozens of times since. The crispy bread and gooey filling are quick to make and always satisfying.
I first made this when I had overripe bananas and no time. My kids now ask for it almost every Saturday morning.
Ingredients
- Thick white bread: adds structure and turns golden when grilled
- Mayonnaise: gives a golden crust with rich flavor instead of butter
- Smooth peanut butter: melts perfectly and binds the banana
- Ripe banana: adds sweetness and a creamy texture
Look for bread that holds its shape and ripe bananas that yield slightly to pressure for best results.
Step-by-Step Instructions
- Prepare the Bread:
- Spread a thin layer of mayonnaise on one side of each slice of bread. This will be the side that grills to a golden crisp.
- Spread the Filling:
- Flip the bread slices and spread peanut butter evenly on the other side the side that will face inward.
- Layer the Banana:
- Place thinly sliced banana across the peanut butter side making sure to distribute it evenly.
- Assemble the Sandwich:
- Place two slices mayo side down onto a hot griddle or frying pan. Top with the remaining two slices peanut butter side down so the mayo side faces outward.
- Grill the Sandwich:
- Cook over medium heat for two to three minutes or until the bottoms are golden and crispy. Flip carefully and cook the other side the same way. The sandwich is done when both sides are golden and the filling is warm.

Peanut butter is always a favorite in our house and pairing it with warm banana brings out such a nostalgic flavor. We often make this while camping or during school mornings.
Storage Tips
This sandwich is best fresh but you can store leftovers wrapped in foil in the fridge for a day. Reheat on a pan over medium heat to restore the crispy crust.
Ingredient Substitutions
You can use almond or cashew butter in place of peanut butter for a new flavor. Swap the banana for sliced strawberries for a summery variation.
Serving Suggestions
Serve with a glass of cold milk or a fruit smoothie. If you are making brunch add some Greek yogurt with honey on the side.

Cultural Context
Grilled peanut butter and banana sandwiches became iconic thanks to Elvis Presley who famously enjoyed them fried in butter. This version is simpler and lighter but still full of comfort.
Recipe FAQs
- → Can I use another nut butter instead of peanut butter?
Yes, almond or cashew butter both work well and offer a slightly different flavor profile.
- → Why use mayonnaise on the outside of the bread?
Mayonnaise helps create a crispy, golden crust without burning, and adds a subtle tangy flavor.
- → What type of bread is best?
Thick white bread holds up well when grilled and balances the soft banana and creamy spread.
- → Can I add extras like honey or cinnamon?
Absolutely! A drizzle of honey or a sprinkle of cinnamon enhances sweetness and flavor depth.
- → Is this sandwich freezer-friendly?
It’s best enjoyed fresh. However, you can prep ahead and reheat in a pan for a similar texture.
- → What pairs well with this dish?
Serve with a glass of milk, a fruit smoothie, or yogurt for a balanced breakfast.