Easy Strawberry Slab Cake: Summer’s Sweetest Slice: Summer’s Sweetest Slice

My Berry Best Cake

I have been making this cake for years. My grandkids ask for it every summer. It always makes me smile.

It is so easy to make. You just mix a few simple things together. The smell in your kitchen will be wonderful. Doesn’t that smell amazing?

A Sweet Little Secret

Let me tell you a secret. The strawberry gelatin is the magic part. It makes the cake pink and full of flavor.

I learned this from my friend Betty. She brought this cake to a picnic. I had to have the recipe right away. I still laugh at how quickly I asked her for it.

Making the Magic

First, you will make the strawberry puree. Just blend up those fresh berries. It is messy but fun.

This is where the real fruit flavor comes from. Using real fruit matters. It makes the cake taste honest and homemade. That is a good feeling.

*Fun fact: A strawberry is not a real berry! Its seeds are on the outside.* What is your favorite summer fruit to bake with?

The Icing on the Cake

The icing is my favorite part. It is creamy and a little bit tangy. The cream cheese makes it special.

Make sure your butter is soft. This matters because it makes the icing smooth. No one likes lumpy icing. Do you like a lot of icing or just a little?

Sharing is the Best Part

This cake is perfect for sharing. It makes a big slab that feeds many. I love taking it to neighbors.

Food tastes better when we eat it together. That is a simple truth. It connects us to the people we love. What is your favorite dessert to share with friends?

Ingredients:

Ingredient	Amount	Notes
Fresh strawberries	1 (16-ounce) container	For the cake
White cake mix	1 (15.25-ounce) box	For the cake
Large eggs	3	For the cake
Vegetable oil	3/4 cup	For the cake
Strawberry flavored instant gelatin	1 (3-ounce) package	For the cake
Unsalted butter	1/4 cup	Room temperature; For the icing
Cream cheese	4 ounces	Room temperature; For the icing
Vanilla extract	1 1/2 teaspoons	For the icing
Powdered sugar	3 cups	For the icing
Strawberry flavored instant gelatin	1 teaspoon	Reserved from cake package; For the icing
Strawberry puree	2 tablespoons	For the icing

Easy Strawberry Slab Cake: Summer’s Sweetest Slice

Oh, summer is just made for cakes like this one. It reminds me of my granddaughter’s birthday parties. We always had a big sheet cake for all the kids. This strawberry slab cake is just as cheerful and easy to share. It’s so moist and pink, it just makes you smile. Doesn’t that smell amazing?

Step 1: Prepare the Strawberries

Let’s start with our strawberries. Wash them and pop off the green tops. Then we’ll mash them up good. You can use a blender or a food processor. I like it a little chunky for texture. We need one cup for the cake and two extra spoonfuls for our icing later.

Step 2: Prepare the Pan and Oven

Now, let’s get our pan ready. Grab your trusty 9×13-inch baking pan. Give it a light spray with cooking spray. This is so our cake doesn’t stick. I learned that the hard way once! Now, preheat your oven to 350° F. A warm oven is a happy oven.

Step 3: Make the Batter

Time to make the batter. In a big bowl, mix the cake mix, eggs, and oil. It will be thick at first. Now, open your strawberry gelatin. Scoop out one teaspoon and save it for the icing. Pour the rest of the powder and your one cup of strawberry puree into the bowl. Mix it all up until it turns a pretty pink color.

Step 4: Bake the Cake

Pour your pink batter into the prepared pan. Spread it out evenly. Pop it in the oven for about 30 to 35 minutes. You’ll know it’s done when a toothpick poked in the middle comes out clean. (A hard-learned tip: Let this cake cool completely before you frost it. I was impatient once, and the icing melted right off! I still laugh at that.)

Step 5: Make the Icing and Frost

For the icing, beat the soft butter and cream cheese together. No lumps! Add the vanilla and your powdered sugar, one cup at a time. Then mix in your two tablespoons of strawberry puree and that saved teaspoon of gelatin. This gives it such a lovely flavor. If it seems too thin, just add a bit more powdered sugar. Frost your cooled cake and you’re done! What’s your favorite summer fruit to bake with? Share below!

Cook Time	30 minutes
Total Time	50 minutes
Yield	12 servings
Category	Dessert

Three Fun Twists on This Berry Cake

This recipe is like a good friend. It’s wonderful as it is, but it’s also happy to change. You can dress it up for different occasions. Here are a few of my favorite ways to play with it. I think you’ll get a kick out of them.

Berry Blast

Mix in a handful of fresh blueberries or raspberries with the strawberries. It makes a confetti of colors and tastes like a summer meadow.

Lemon Sunshine

Use lemon cake mix and lemon gelatin instead of strawberry. The lemon and strawberry icing is a tangy, sunny combination that wakes up your taste buds.

Shortcake Style

Skip the icing and serve a warm slice with a big scoop of vanilla ice cream. It’s like a lazy-day strawberry shortcake, and it’s just divine.

Which one would you try first? Comment below!

Serving Your Slice of Sunshine

Now, how should we enjoy this beautiful cake? A simple slice on a plate is perfect. But sometimes, it’s fun to make it extra special. I love seeing a child’s face light up when dessert arrives. It’s the little things, you know.

For a real treat, top your slice with extra sliced fresh strawberries. A little dollop of whipped cream never hurt anybody either. For drinks, the grown-ups might enjoy a glass of sweet pink Moscato wine. It sings with the strawberry flavor. For the kids, and me, a tall glass of cold milk or sparkling pink lemonade is just the ticket. Which would you choose tonight?

Keeping Your Slab Cake Fresh

This cake is best kept in the fridge. Just cover the pan with some plastic wrap. It will stay happy and fresh for up to five days. You can also freeze slices for a sweet treat later. Wrap each piece tightly in plastic wrap. Then pop them into a freezer bag for up to three months.

I remember making this for my grandson’s birthday. We had so much cake left over. Freezing it was a lifesaver. He had a little slice for weeks after. This is why batch cooking matters. It saves you time on a busy day. A ready-made dessert in your freezer is a little gift to yourself.

Let the frozen cake thaw on the counter before eating. No reheating is needed. It tastes just like you baked it that morning. Have you ever tried storing it this way? Share below!

Simple Fixes for Common Cake Troubles

Is your cake too dense? Do not overmix the batter. Stir just until everything is combined. I once mixed for too long. My cake came out tough and heavy. Gentle mixing gives you a soft, fluffy cake.

Is your icing too runny? Your butter and cream cheese might be too soft. They should be just at room temperature. This matters because good icing should be spreadable, not soupy. It makes your cake look and taste wonderful.

Did your cake stick to the pan? Always spray your pan well with cooking spray. This simple step builds your cooking confidence. You will always get a perfect slice. Which of these problems have you run into before?

Your Slab Cake Questions Answered

Q: Can I make this gluten-free? A: Yes, just use a gluten-free white cake mix. It works just as well.

Q: Can I make it ahead? A: Absolutely. Bake the cake the day before. Add the icing right before you serve it.

Q: What if I don’t have fresh strawberries? A: You can use frozen ones. Just thaw and drain them well first.

Q: Can I make a smaller cake? A: You can halve the recipe. Use an 8×8 inch pan. The baking time will be a little less.

Q: Is the gelatin necessary? A: It gives a big strawberry flavor. But you can leave it out for a more subtle taste. Which tip will you try first?

Share Your Sweet Creation

I hope you love making this pink, happy cake. It always brings a smile to my kitchen. Seeing your creations would make my whole week. Please share a picture if you make it.

Fun fact: Strawberries are the only fruit with seeds on the outside!

I would be so thrilled to see your slice of summer. Have you tried this recipe? Tag us on Pinterest! Happy cooking!

—Tessa Hammond.