Banana Sour Cream Streusel Bars

Saturday, January 4, 2020
If you're looking to get rid of those overripe bananas these banana sour cream streusel bars should be in your oven right now.

An easy to make bar recipe all made from scratch that everyone loves.

The streusel topping is rich with butter and cinnamon and the glaze on top is a delicious orange zested frosting that put the perfect blend of flavors in this banana coffee cake.

I just love all banana recipes you may have already tried my coconut banana cake or my delicious banana oatmeal cookies another family favorite.

There are always overripe bananas laying around but when that happens it's a great excuse to make these delicious cake squares!

This banana bar is truly a great recipe to bring to pot luck parties as well as making them for family and friends.

This all in one pan banana bar coffee cake style dessert really wows everyone and you will get rave reviews on them!

Scroll down and print off these easy to make bars and use up those ugly bananas and make something decadent today!

these are a banana sour cream streusel bar with a drizzle of orange frosting and cinnamon topping

Banana Recipe Lovers

This is one of those coffee cakes that's more like a dense banana quick bread but super moist.

The flavors that make you want more every time you take a bite.

This cake bar is truly addicting, it has a little tartness from the orange icing.

The freshness of the orange zest compliments the cinnamon streusel topping this moist banana style scratch cake.

I really love this quick bread style bar, it's just the perfect sweet dessert with coffee or tea when you get that sweet tooth urge.


(for those not fond of streusel here are some alternative)
chocolate chips

  • leave the top plain and just drizzle with frosting
  • top with chopped nuts and raisins
  • top with shredded coconut
  • drizzle the top with chocolate frosting
  • drizzle the top with cream cheese frosting

this is sugar, butter, flour and cinnamon to make a streusel topping for banana sour cream bars

Ingredients You Will Need to Make Banana Sour Cream Streusel Bars

(scroll down to the printable recipe card for the exact measurements)

  • butter
  • eggs
  • sour cream
  • vanilla
  • banana mashed
  • salt
  • sugar
  • flour
  • baking powder
  • Streusel Topping:
  • butter
  • flour
  • light brown sugar
  • sugar
  • ground cinnamon
  • Glaze:
  • powdered sugar
  • orange zest
  • orange juice


  • Don't overbeat the batter
  • The cake is moist but dense like banana bread
  • This cake freezes well
  • Always use overly ripe bananas
  • Make it in a brownie pan, it's just the right thickness
  • Don't forget to grease the pan
  • Do not over bake the cake, the middle just needs to be clean using the toothpick method
  • You can use lime or lemon zest in place of orange or just add vanilla extract

this is the batter for banana sour cream streusel bars in a pan

Pin This Recipe for Banana Sour Cream Streusel Bars for Later

pin for later banana sour cream bars with a streusel topping and orange zested frosting in the an aluminum pan

this is a full sheet pan of banana bars made with sour cream and topped with streusel then drizzled with orange zested frosting

More Banana Recipes:

Dried Cherry Banana Bread

Air Fryer Banana S'mores

Old Fashioned Banana Cream Pie

Banana Sour Cream Streusel Bars

Banana Sour Cream Streusel Bars

Yield: 24
prep time: 10 Mcook time: 40 Mtotal time: 50 M
These are a moist banana sour cream bar with streusel topping and an orange glaze on top. Its the perfect coffee cake made with overripe bananas!


  • 8 ounces of butter
  • 3 eggs
  • 1 cup sour cream
  • 1 teaspoon vanilla
  • 3 large banana mashed
  • pinch of salt
  • 1 cup sugar
  • 2 1/2 cups flour
  • 2 teaspoons baking powder
  • Streusel Topping:
  • 6 tablespoons butter softened
  • 1 1/4 cup all-purpose flour
  • 1/2 cup light brown sugar
  • 1/3 cup sugar
  • 1 teaspoon ground cinnamon
  • Glaze:
  • 2 1/4 cups powdered sugar
  • 1 teaspoon orange zest
  • 3 tablespoon orange juice or more to make easy flowing


How to cook Banana Sour Cream Streusel Bars

  1. For the Bars
  2. Cream the butter and sugar together.
  3. Add the eggs, bananas, vanilla, sour cream to the butter and sugar blend together.
  4. Stir in the flour, baking powder, salt until blended together.
  5. Pour into a greased brownie sized pan 12 x 9. Make the streusel.
  6. For the streusel:
  7. Soften the butter.
  8. Mix the sugar, flour, butter into the softened butter with cinnamon using a fork until just crumbly.
  9. Spread over the top of the batter.
  10. Bake at 350 degrees for 35  to 45 minutes or until the middle is clean with a toothpick.
  11. Make the glaze:
  12. In a bowl add the powdered sugar, orange zest, and orange juice and make a frosting glaze that free-flowing, you may need to add more juice.
  13. Drizzle over cooled bars. Dry then cut into squares.
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Created using The Recipes Generator

Pin This Recipe for Banana Sour Cream Streusel Bars for Later

pin for later banana sour cream bars with a streusel topping and orange zested frosting in the an aluminum pan

More Dessert Recipes We Love

Apple Cake Squares
Peanut Butter Chip Bars

Oreo Peanut Butter Stuffed Brownies
Peanut Butter Graham Stuffed Brownies

Disclosure: This recipe was originally shared in 2014. It was edited and re-published in 2020.


  1. These flavors together are sublime and delicious. I would totally make this again.

  2. These were 5 star delicious!!! I had ripe bananas frozen in the fridge and this recipe was so easy and yummy!!


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