
This brown sugar peach cake brings together juicy fresh peaches tucked into a classic yellow cake and a dreamy brown sugar caramel icing that settles into crackly sweetness over the top. Summer baking does not get better than this luscious treat that comes together with pantry staples and a few market peaches.
I whipped this up for a family barbecue last July and it was the first dessert gone The combination of warm cake and gooey icing is completely irresistible My nieces ask for it every summer now
Ingredients
- Yellow cake mix: About fifteen ounces Pick a brand you trust for best texture and taste I like Duncan Hines
- Large eggs: Use three or follow your mix directions Farm fresh eggs do wonders for the crumb
- Vegetable oil: One third cup or as directed on your cake box Neutral oils keep the cake moist without overpowering the peach flavor
- Peach nectar or juice: Half a cup This gives you even more peachy goodness Choose real juice for full flavor
- Fresh peaches: About one pound peeled and chopped Ripe but still firm peaches hold up best and taste extra sweet
- Orange food coloring: Optional but fun if you want a glowing peach color Look for a gel type for vivid color
- Unsalted butter: Half a cup for the frosting Cut into pieces for quicker melting Use high quality butter for the best caramel taste
- Heavy cream: Half a cup This gives the frosting its silky texture Use fresh cream for optimal richness
- Brown sugar: One cup packed It creates that signature caramel flavor Dark brown sugar gives more depth if you have it
- Vanilla extract: One teaspoon Rounds out the sweetness Go for real vanilla when possible
- Confectioners sugar: Two and a half cups sifted This keeps your icing smooth and lump free
Step-by-Step Instructions
- Prep Your Pan and Oven:
- Lightly spray a 9x12 inch baking pan with nonstick spray and preheat your oven to 350F Take time to line the pan if you want easy lifting later
- Mix the Batter:
- In a large mixing bowl combine the cake mix eggs vegetable oil and peach nectar Add a touch of orange food coloring if using Whip until the mixture is even and smooth
- Fold in the Peaches:
- Gently stir in the chopped fresh peaches so they are evenly distributed throughout the batter
- Bake the Cake:
- Spoon the batter into your prepared pan and spread it evenly Bake for about twenty eight minutes Check for doneness with a toothpick inserted in the center It should come out mostly clean with a few moist crumbs but no raw batter
- Make the Brown Sugar Frosting:
- In a saucepan combine the unsalted butter heavy cream and brown sugar Bring to a gentle boil over medium heat stirring constantly to dissolve the sugar Once it is fully melted and bubbling remove from heat Stir in vanilla and sifted confectioners sugar Whisk until the frosting is glossy and lump free If needed return to low heat to help dissolve any last bits of sugar
- Frost the Cake:
- Immediately pour the warm frosting evenly over the cake Try to cover the surface completely The icing sets quickly so avoid spreading once it begins to harden
- Let the Frosting Set:
- Allow the cake to sit at room temperature or chill in the fridge until the icing is firm to the touch You will get those pretty crackles when cutting
- Cut and Serve:
- Once fully cooled slice into squares Enjoy every gooey caramel and peachy bite

The brown sugar frosting is my favorite part It reminds me of the icing my grandmother used for her famous caramel cakes Growing up I would always sneak a little taste from the saucepan before it hit the cake
Storage Tips
Keep leftovers in an airtight container at room temperature for up to two days For longer storage pop it in the refrigerator up to five days The frosting firms up in the fridge but softens again at room temp If you love a chilled treat you can even enjoy a slice direct from the fridge
Ingredient Substitutions
You can use canned peaches drained and chopped if fresh are not available Just pat them dry to avoid extra moisture For a dairy free version swap in plant based butter and coconut cream The cake mix can be replaced with your favorite homemade yellow cake recipe as well
Serving Suggestions
Serve just as it is or add a scoop of vanilla ice cream for warm summer nights For a brunch spread cut smaller squares and offer alongside fresh berries The caramel icing also pairs perfectly with whipped cream if you want extra decadence

Cultural and Historical Context
Peach cakes and caramel icings have deep summer roots in Southern American baking Using a yellow cake mix is a clever shortcut that first became popular in the mid twentieth century making from scratch flavor quick enough for weeknight desserts This recipe gives you the nostalgia and comfort of old fashioned peach desserts with modern convenience
Frequently Asked Questions About Recipes
- → What type of peaches work best?
Ripe, fresh peaches give the cake the best texture and flavor, but canned peaches can be used in a pinch if well-drained.
- → Can I substitute the peach nectar?
Yes, apricot nectar or orange juice can replace peach nectar for a slightly different fruit flavor in the batter.
- → How do I know when the cake is done?
Check for doneness by inserting a toothpick into the center. It should come out clean or with small moist crumbs, but no raw batter.
- → Is the caramel icing hard or soft?
The brown sugar caramel icing will set with a slight crust on top but remains creamy inside, making it easy to slice and eat.
- → Do I need to refrigerate leftovers?
Store any uneaten portions covered at room temperature for up to two days, or refrigerate to keep the icing set in warm weather.