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    Home » Recipes » Brownies & Bars

    Applesauce Bars with Brown Butter Icing

    Published: Oct 26, 2019 · Modified: Dec 12, 2022 by Heather · As an Amazon Associate I earn from qualifying purchases. · 1291 words. · About 7 minutes to read this article.

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    Applesauce Bars with Browned Butter Frosting by The Toasty Kitchen
    Applesauce Bars with Browned Butter Frosting by The Toasty Kitchen
    Applesauce Bars with Browned Butter Frosting by The Toasty Kitchen

    Applesauce Bars with brown butter icing are the perfect quick dessert recipe for fall. Moist, cakey bars are filled with applesauce and cinnamon and topped with a sweet brown butter icing.

    Stack of applesauce spice bars on a white plate.

    Fall has some of the best and most comforting flavors and spices. These applesauce bars are no exception - they're sure to get you into a fall state of mind!

    These cake-like bars are so soft and moist from the addition of applesauce. They're filled with fall-favorite spices, like cinnamon, ginger, and nutmeg - like a mini-spice cake in bar form.

    Arguably the best part? The brown butter icing. It's silky, sweet, and filled with caramelized flavor. Plus, it's surprisingly simple to make!

    All you need are a few simple pantry staples to get started. A great recipe for a novice baker! Plus, the applesauce does the heavy lifting in this recipe, so these bars are egg-free.

    Ingredients and substitutions

    Ingredients on a counter top.

    Baking is an exact science, and each ingredient serves a purpose. I do not suggest making any substitutions (other than what I've listed here) for best results.

    Melted butter - Unsalted butter can be substituted with salted butter (omit the salt listed in the recipe).

    Applesauce - Homemade or store bought unsweetened applesauce can be used in this recipe. If using sweetened applesauce, you may want to reduce the brown sugar by 2 tablespoons.

    All-purpose flour - Adds structure and stability to your bars. I have not tested this recipe with other types of flour. If you do not have AP flour on hand, I highly suggest searching for a recipe that includes the ingredients you do have on hand. This recipe was written specifically to work by using all-purpose flour.

    Brown sugar - Adds sweetness, moisture, and a caramelized/molasses flavor to your bars. Also adds a bit of acidity that works with the baking soda. I do not recommend substituting with granulated sugar as you'll lose the added flavor and change the acidity of the recipe.

    Spices - Salt, cinnamon, ginger, and nutmeg add depth of flavor to your bars. The spices could be substituted with an apple pie spice blend or pumpkin pie spice blend in equal amounts.

    Baking soda - Helps your bars rise slightly, making them less dense. Make sure your baking soda is not expired. Can not be substituted with baking powder - these ingredients are different and not interchangeable.

    Vanilla extract - Adds depth of flavor to your bars. Can be omitted if needed.

    Brown butter icing ingredients

    Ingredients on a counter top.

    Confectioner's sugar - Also known as powdered sugar or icing sugar. Sweetens and thickens your frosting, adding stability. Using less confectioner's sugar will result in a runny frosting.

    Milk - Any milk you have on hand will work in this recipe, like skim milk, whole milk, almond milk, or oat milk.

    Brown butter - Icing can also be made with regular softened butter, if you don't like the added caramelized flavor of brown butter.

    Vanilla extract - Adds depth of flavor to your icing. Could be substituted with maple extract for a slightly different flavor.

    Making brown butter

    Browning butter in a sauce pan.

    Making brown butter is as simple as adding butter to a pan and allowing it to brown. No extra ingredients needed!

    Keep a close eye on your butter and stir frequently. Eventually, it will turn a golden color and small brown flecks will form at the bottom of the pan.

    Once you see a good amount of brown flecks in the pan, remove from the heat and allow to come to room temperature.

    I suggest pouring your butter into a bowl and refrigerating for 10 to 15 minutes, or until it just begins to solidify. Ideally you want a "softened butter" texture.

    Baking tips and tricks

    Making applesauce spice bars in a square pan, then making icing and spreading onto bars.
    • Properly measure your dry ingredients, especially the flour and confectioner's sugar. This is the most common issue I see in baking. Too much flour will make your bars dry. Too much confectioner's sugar will make your icing very sweet. To properly measure dry ingredients, either use a scale and weigh your ingredients, or gently spoon the ingredients into the measuring cup and level off with a knife. Scooping with the measuring cup from a bin compacts the ingredient into the cup, adding up to 25% extra to your recipe.
    • Do not substitute ingredients. Using less/lower fat ingredients can dry out your baked goods. This recipe relies on the use of butter, brown sugar, and applesauce to add moisture to the bars.
    • Ovens can run hotter or colder than the next oven, so it's important to look at your bars and test for doneness, rather than rely on time alone. Use a toothpick inserted into the center. Once it comes out clean, your bars are done.
    • Allow the bars to cool to room temperature before frosting. Warm baked goods will melt frosting.
    • Do not slice into hot baked goods. This releases steam/moisture, making your bars dry.
    Close up of a stack of applesauce spice bars.

    How to serve applesauce bars

    Applesauce bars are very moist and cake-like, and can be served a few ways. First, they can be served as snack bars. Meant to be picked up and eaten like a brownie or cookie - no utensils needed. For this, I suggest cutting your bars into small, two to three bite squares.

    If your bars turn out extra moist (this will depend on how wet your applesauce is), they may be too tender to pick up and eat by hand. These bars are practically like a piece of spice cake. In this case, your bars can easily be served like a slice of cake, with a fork.

    Close up of cakey texture of applesauce bars.
    Print Recipe
    4.80 from 20 reviews

    Applesauce Bars with Brown Butter Frosting

    Applesauce Bars with Brown Butter Icing are the perfect quick dessert recipe for fall. Moist and cakey bars are filled with applesauce and cinnamon flavors, and topped with a sweet brown butter icing.
    Prep Time10 minutes
    Cook Time22 minutes
    Total Time32 minutes
    Servings: 16 squares
    Calories: 163kcal
    Author: Heather

    Ingredients

    Applesauce Spice Bars

    • ⅓ cup (75 g) unsalted butter, melted
    • ½ cup (107 g) brown sugar
    • ½ cup (128 g) unsweetened applesauce
    • 1 teaspoon vanilla extract
    • 1 cup (120 g) all-purpose flour
    • ½ teaspoon baking soda
    • ¼ teaspoon salt
    • 1 teaspoon cinnamon
    • ¼ teaspoon ginger
    • ¼ teaspoon nutmeg

    Browned Butter Icing

    • ¼ cup (57 g) unsalted butter
    • 1 ½ cups (170 g) confectioner's sugar
    • ½ teaspoon vanilla extract
    • 2 tablespoons (28 g) milk

    Instructions

    Applesauce Spice Bars

    • Preheat oven to 350 degrees Fahrenheit. Line an 8x8 pan with parchment paper and set aside. 
    • In a bowl, add wet ingredients: melted butter, brown sugar, applesauce, and vanilla. Stir to combine. Add flour, baking soda, salt, cinnamon, ginger, and nutmeg. Stir to combine. 
    • Pour into 8x8 pan and use a spatula to spread evenly to the edges. Batter will be thick.
    • Bake for 20-22 minutes, or until a toothpick comes out clean (or with crumbs, not batter). Allow to cool completely before frosting. 

    Browned Butter Icing

    • In a small saucepan over medium heat, melt butter and stir frequently. Butter will begin to foam and boil. After 3 to 4 minutes you will see brown flecks appear in the bottom of the pan. Continue to stir until butter is golden and flecks are a medium brown color. Watch closely, butter will brown quickly. Process will take about 5 to 7 minutes.
    • Remove butter from heat and pour into a small bowl. Refrigerate for 10-15 minutes, or allow to set until butter is room temperature. 
    • Whisk confectioner's sugar in a bowl. Add cooled butter, vanilla, and 2 tablespoons of milk. Beat until light and fluffy, about 2 to 3 minutes. Add more milk if needed, 1 tablespoon at a time until desired texture is reached.
    • Pour icing onto bars. Use a knife to spread evenly over bars. Allow icing to set before cutting into bars. 

    Equipment Recommendations

    • 8x8 Baking Pan
    • Pyrex Glass Mixing Bowls
    • Kitchenaid Hand Mixer
    • Dry Measuring Cups

    Notes

    • Bars can be served alone or with a fork to eat like cake. Depending on the moisture in your applesauce, bars may turn out more cake-like and tender. 
    • Leftover bars will keep for 2-3 days at room temperature in a sealed container.

    Nutrition Estimate

    Serving: 1square | Calories: 163kcal | Carbohydrates: 25g | Protein: 1g | Fat: 7g | Saturated Fat: 4g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 2g | Trans Fat: 1g | Cholesterol: 18mg | Sodium: 75mg | Potassium: 30mg | Fiber: 1g | Sugar: 19g | Vitamin A: 213IU | Vitamin C: 1mg | Calcium: 13mg | Iron: 1mg
    Course: Dessert
    Cuisine: American

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    1. Jessica

      November 03, 2022 at 11:00 pm

      Has anyone grated apples and put them in the cake before baking. I am wanting more of an apple taste and think this could do the trick.

      Reply
    2. Robin

      June 17, 2022 at 7:54 pm

      Hello! I was gifted some jars of homemade applesauce and have been looking for ways to use it up. This recipe sounds wonderful. My question is that since the applesauce is sweetened, do you recommend eliminating the brown sugar in the recipe or just reducing it? I am leaning toward leaving it out altogether as we don’t like very sweet foods, but like you mentioned - baking is an exact science, and every ingredient serves a purpose. Thank you for your time!

      Reply
      • Heather

        June 17, 2022 at 8:03 pm

        Hi Robin, I haven't tested this recipe using sweetened applesauce, but I'd suggest cutting the brown sugar in half. The frosting is also pretty sweet, so you could probably omit it entirely (or cut it in half for just a thin layer of frosting) if you're not a fan of super sweet desserts.

        Reply
        • Robin

          June 18, 2022 at 6:27 pm

          Hello again -Thank you for your response! I made these today, and they are wonderful! Moist, spices are on point, and they smell great. I cut the brown sugar to 1/4 cup in the batter and only used 1/2 cup powdered sugar in the icing. I also mixed about 1/4 cup softened cream cheese into it, and the sweetness was perfect. Keeper ❤️

          Reply
    3. Julie

      November 01, 2021 at 5:10 am

      I made this yesterday and it was DELICIOUS!! Our new favourite cake!
      I replaced the brown sugar with coconut sugar and left off the icing. We are always looking for ways to reduce our sugar intake. Even without the icing the cake was perfect and my 4 children gobbled it right up! This will be making an appearance at our holiday parties from now on! Thank you so much for the recipe!

      Reply
    4. Valerie

      November 08, 2020 at 6:38 pm

      No egg?

      Reply
      • Heather

        November 08, 2020 at 6:41 pm

        Correct, no egg!

        Reply
    5. Carrie

      June 30, 2020 at 1:03 pm

      Is it okay to just use cooking spray/grease the pan instead of using parchment paper?

      Reply
      • Heather

        June 30, 2020 at 1:04 pm

        Yes, you can grease the pan instead of using parchment paper!

        Reply
    6. Cynthia

      June 28, 2020 at 7:30 am

      This recipe is sooo delicious! me and my family really enjoy them and they will continue to be a part of our family recipes. Thank you so much for sharing.

      Reply
    7. Kayla Reed

      March 27, 2020 at 3:51 pm

      I absolutely love this recipe! I’ve made it twice now in one week, it’s just so good! I make my own applesauce to use in it and also have doubled the recipe to make it more like a square cake. Thank you for such a tasty and easy recipe!

      Reply
      • Heather

        March 27, 2020 at 3:51 pm

        Thank you Kayla, so glad you enjoy the recipe!

        Reply

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    Heather of The Toasty Kitchen

    Hi, I'm Heather of The Toasty Kitchen. I love cooking with real, unfussy ingredients, and I want to help you make homemade meals with ease.

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