9×13 Strawberry Cake (From Scratch, No Jello)

Here is the strawberry cake problem: most of them taste like nothing. They are pink, they are pretty, and then you take a bite and wonder where the strawberries went. I solved this by combining a cooked strawberry reduction with freeze dried strawberry powder, which gives you two concentrated layers of real berry flavor in every slice. This recipe bakes in a 9×13 because that is what 70% of my readers told me they reach for, and it delivers everything my fully tested layer cake does without the extra steps.

I asked my Instagram audience a question a while back: if you were going to bake a cake, what pan would you use? A full 70% said 9×13. Not a layer cake pan. Not a bundt. A 9×13. And honestly? Same. So I have been on a mission to take my best layer cake recipes and adapt them for the pan most of us actually reach for.  I already converted my white cake, chocolate cake and lemon cake, now for this strawberry cake!

The Flavor Problem with Strawberry Cake

Here is the truth about most strawberry cakes: they do not taste like strawberries. They taste like artificial strawberries. It is one of the most common baking disappointments out there, and it is completely fixable.

I already had a deeply tested strawberry layer cake under my belt, which meant I had done the hard work of cracking the flavor problem. I tested three methods, fresh puree, a cooked reduction, and freeze dried strawberries blended into a fine powder, before landing on a combination of the last two. A strawberry reduction concentrates a full pound of fresh berries down to a deeply flavored sauce. The freeze dried powder layers in a second hit of bright, intense berry flavor. Together, they make a cake that genuinely tastes like strawberry season in every bite.

Adapting that layer cake to a 9×13 is not just a matter of dumping the batter into a bigger pan. The bake time changes, the way the cake sets is different, and you have to think about how a sheet cake holds frosting versus a stacked layer. I tested this version specifically for the single pan format to make sure you get the same bold strawberry flavor, the same tender crumb, and a frosting that spreads beautifully without sliding around. Everything has been tested with both regular and gluten free flour so no one gets left out.

I also want to say something about the frosting to cream cheese ratio in this recipe. A lot of strawberry cream cheese frostings lean too sweet and lose the tang that makes cream cheese worth using in the first place. I kept the powdered sugar on the lower end intentionally and let the freeze dried strawberry powder do the flavor work. The result is a frosting that tastes zippy and bright rather than just sweet. If you try it and want more sweetness, you can always add more powdered sugar, but I would encourage you to taste it first before you do.

Metal Pan vs Glass Pan Bake Time

If you are baking in a metal 9×13, aim for 40 to 45 minutes. Glass pans hold heat differently and take a bit longer to get there, so add 4 to 6 minutes and start checking at 44 minutes. In both cases, the toothpick test is your best friend. You want it to come out with just a few moist crumbs, not wet batter, but also not completely dry.

Key Ingredients

Get the full ingredient list with measurements in the recipe card below. Here is what is doing the heavy lifting in this cake and why each one matters:

Fresh Strawberries (reduced) — One pound of fresh strawberries cooked down into a concentrated sauce. This is the step that separates this cake from every bland strawberry cake you have had before. Do not skip it.

Freeze Dried Strawberries — Used in both the cake and the frosting. They blend into a fine powder that adds a second hit of intense berry flavor without adding any extra liquid.

All Purpose Flour + Cornstarch — This combo mimics cake flour, giving you a lighter, more tender crumb with enough structure to hold up in a single layer.

Egg Whites Only — Keeps the crumb light and lets the strawberry flavor and color come through without the richness of yolks getting in the way.

Butter + Vegetable Oil — Butter for flavor, oil for moisture that lasts. I tested both together through multiple rounds and this combo consistently gave the best texture.

Sour Cream + Whole Milk — Sour cream adds richness and keeps the crumb tender. Whole milk thins the batter just enough to make it pourable without affecting the structure.

Full Fat Cream Cheese (frosting) — Do not use reduced fat. It has more water content and will give you a looser, less stable frosting. Room temperature is non-negotiable for a smooth result.

How to Make Strawberry Cake

Follow my easy step-by-step instructions below, or jump to the recipe card for the full recipe:

For the Strawberry Reduction Sauce

Prep strawberries: Wash and hull 1 pound (16 oz) of fresh strawberries.

Blend: Blend or puree the strawberries until smooth—you should have about 2 cups of strawberry puree.

Transfer: Pour the puree into a medium saucepan. Set over medium-low heat.

Cook: Simmer the mixture, stirring occasionally, for 25–30 minutes. The puree should gently bubble and reduce in volume.

Reduce: Continue cooking until the mixture has thickened and reduced to about 1 ⅓ cups. It will coat the back of a spoon.

Cool: Cool the reduction to room temperature before using. For this recipe, you’ll need ⅔ cup (163g) of the reduced sauce.

For the Strawberry Cake

Prep oven and pan: Preheat the oven to 350º F. Grease a 9×13 inch pan or line with parchment paper. Set aside.

Make strawberry powder: Add freeze-dried strawberries to a high-speed blender or food processor. Blend or pulse until the strawberries break down into a fine powder.

Combine dry ingredients: In a small mixing bowl combine the flour, cornstarch, baking powder, baking soda, salt, and strawberry powder.

Combine wet ingredients: In a large mixing bowl combine the butter, sugar, and vegetable oil, beat using an electric mixer, 1-2 minutes until fluffy.

Mix in more wet ingredients: Add in the egg whites, sour cream, and milk. Beat with the electric mixer.

Mix in strawberry: Add in ⅔ cup strawberry reduction sauce, mix to combine.

Combine all ingredients: Gradually add the flour mixture to the wet ingredients, mixing just until the flour is incorporated.

Transfer: Transfer the batter to the pan. Bake for 40-45 minutes (metal pan) 44-47 minutes (glass pan) or until a toothpick inserted in the center comes out clean.

Cool: Allow the cake to cool completely before frosting.

For the Strawberry Cream Cheese Frosting

Make strawberry powder: In a blender or food processor, blend the freeze dried strawberries into a fine powder. Set aside.

Begin combining ingredients: Place the softened cream cheese and unsalted butter in a mixing bowl. Use an electric mixer on medium speed and beat together for 1-2 minutes, until whipped and fluffy.

Finish combining ingredients: Add in the vanilla extract, salt, and 2 cups of powdered sugar, beat again on low for 1-2 minutes, scraping down the sides of the bowl, until everything is incorporated.

Adjust as needed: Taste the frosting and if you prefer it more sweet, add in 1 more cup of powdered sugar.

Mix in strawberry powder: Add in the freeze dried strawberry powder, beat on medium speed until fully incorporated.

Spread: Spread the frosting on top of the cake. Serve with additional strawberry puree if desired.

Tips for a Perfect Strawberry Sheet Cake

• Do not skip the strawberry reduction. It sounds like extra work but it is the whole reason this cake tastes the way it does. Cook it down until it is thick and coats the back of a spoon.
• Use room temperature ingredients. Cold butter, eggs, and sour cream do not incorporate as smoothly and can affect the texture of the final cake.
• Do not overmix once the flour goes in. Mix just until the flour disappears.
• Let the cake cool completely before frosting. I know it is tempting, but warm cake melts the cream cheese frosting and it will slide right off.
• Use a light colored metal pan if possible. Dark pans absorb more heat and can overbake the edges before the center sets.

One thing I want to be honest about: making the strawberry reduction feels like extra work when you first read the recipe. You are standing over a saucepan for 25 minutes watching strawberry puree bubble and thicken, and it is easy to wonder if it is really necessary. It is.

The first time I skipped a proper reduction in a test batch and just used fresh puree straight, the cake was noticeably flatter in flavor. The reduction is where the magic happens. The water cooks off, the sugars concentrate, and what you are left with is basically a thick strawberry sauce with zero dilution. That is what makes the difference between a cake that tastes like strawberry and a cake that tastes like it was near a strawberry once.

How to Store Strawberry Cake without Jello

This cake can be stored covered at room temperature for up to 4 hours, or in the refrigerator for up to five days. Because the frosting contains cream cheese, refrigerating it after a few hours is a good call. Let it sit at room temperature for about 20 minutes before serving so the frosting softens back up.

Can You Freeze It?

Yes. To freeze the whole cake, place it uncovered in the freezer until the frosting is firm, then wrap tightly in plastic wrap and return it to the freezer for up to two months. For individual slices, store in an airtight container or freezer bag with parchment between pieces. Thaw in the refrigerator overnight.

Frequently Asked Questions

More Recipes Using Strawberries

• Strawberry Angel Food Cake
• Mini Strawberry Cheesecakes
• Strawberry Sauce
• Strawberry Sangria
• Easy Strawberry Whipped Cream