Tender Strawberry Coffee Cake with Brown Sugar Streusel

This strawberry coffee cake has a soft, buttery crumb, juicy pockets of fresh fruit, and a cinnamon laced brown sugar topping that bakes up crisp. It is just as welcome on a lazy weekend breakfast table as it is with an afternoon cup of coffee.

No mixer required, just a couple bowls and a wooden spoon. The batter comes together quickly, and you can use the same bowl for the streusel, so there is not much to wash up after.

Why This Strawberry Cake Works

The batter gets its tenderness from buttermilk, which gives the crumb a velvety texture without making it heavy. A full pound of fresh strawberries keeps every bite moist, and a little vanilla rounds out the fruit without covering it up.

The streusel is all brown sugar and butter, no oats, so it melts into a thin, crunchy shell on top. As the cake bakes, the berries release just enough juice to create jammy little pockets inside.

This is the version I keep coming back to when I want a cake that tastes like summer, even when the berries are not quite perfect. It stays moist through the next day, so you can bake it ahead and slice it as needed.

Ingredients

• 2 cups all purpose flour: spooned and leveled, not scooped
• 1 ½ tsp baking powder: helps the cake rise evenly
• ½ tsp baking soda: reacts with the buttermilk for tenderness
• ½ tsp fine sea salt: brings out the sweetness
• ½ cup unsalted butter, softened: room temperature creamery butter works best
• 1 cup granulated sugar: sweetens without weighing down the crumb
• 2 large eggs: at room temperature so they blend smoothly
• 2 tsp vanilla extract: pure vanilla if you have it
• ¾ cup buttermilk: well shaken, or use milk plus 1 tsp lemon juice
• 1 lb fresh strawberries: hulled and diced small (about 3 cups)
• ½ cup packed light brown sugar: for the streusel
• ⅓ cup all purpose flour: holds the streusel together
• 1 tsp ground cinnamon: gives the topping a warm spice note
• 3 tbsp cold unsalted butter: diced into small cubes

Variations / Substitutions

• Frozen strawberries: use them straight from the freezer, no need to thaw. The color may bleed a little more, but the flavor is just as good.
• Buttermilk alternative: stir 1 tsp white vinegar or lemon juice into ¾ cup whole milk and let it sit for 5 minutes until it curdles slightly.
• Make it lemony: add 1 tsp finely grated lemon zest to the batter along with the vanilla.
• Other berries: blueberries, raspberries, or a mix all work. If using raspberries, fold especially gently so they keep their shape.
• Gluten free version: swap the all purpose flour for a cup for cup gluten free blend that contains xanthan gum.

Strawberry Cheesecake Pound Cake goes perfectly with this coffee cake when you want something sweet.

How to Make Strawberry Coffee Cake

Step 1: Whisk the Dry Ingredients

Preheat your oven to 350°F (180°C) with a rack in the center. Grease a 9 inch square baking pan and line it with parchment paper, letting the edges hang over for easy lifting later.

In a medium bowl, whisk together the 2 cups flour, baking powder, baking soda, and salt until no streaks remain. Set the bowl aside for a moment while you get the butter and sugar going.

The dry mixture should look evenly pale yellow and feel light, not packed. If you are using a measuring cup, spoon the flour in and level it off; scooping straight from the bag can add extra flour and make the cake dense.

Step 2: Cream the Butter and Sugar

In a large mixing bowl, beat the softened ½ cup butter and 1 cup granulated sugar together with a wooden spoon or hand mixer until the mixture looks fluffy and a shade lighter, about 2 minutes. It will still have some graininess from the sugar, and that is fine.

Crack in the 2 eggs, one at a time, stirring well after each addition, then stir in the 2 tsp vanilla extract. The mixture will look silky and a little glossy.

Step 3: Alternate Dry and Buttermilk

Add about one third of the flour mixture to the butter mixture and stir just until a few streaks of flour remain. Pour in half of the buttermilk and stir to combine. Repeat with another third of flour, the rest of the buttermilk, and finally the last of the flour.

Stop stirring the moment you no longer see dry patches. The batter will be thick but satiny, and a few small lumps are completely normal. Overmixing at this stage can make the cake tough.

Step 4: Fold in the Strawberries

Scatter the diced strawberries over the batter and fold them in with a wide spatula. Cut through the center, scrape around the bowl, and turn the whole mass over a few times until the berries are speckled throughout.

The batter will look pink streaked and a little wetter now, and that is a good sign. Do this step with a gentle hand so the berries stay mostly whole instead of turning to mush.

Step 5: Top with Streusel and Bake

In the same medium bowl you used for the dry ingredients, combine the ½ cup brown sugar, ⅓ cup flour, and cinnamon. Add the 3 tbsp cold butter cubes and work them in with your fingertips until the mixture clumps together like damp sand, no dry flour visible.

Scrape the strawberry batter into the prepared pan and smooth the top with the spatula. Crumble the streusel evenly over the surface, covering the batter right to the edges.

Bake for 45 to 50 minutes, until the top is deeply golden and a wooden skewer inserted in the center comes out with just a few moist crumbs clinging to it. The cake should feel springy in the middle when you press it lightly. If the streusel browns too quickly before the cake is done, lay a piece of foil loosely over the top for the last 10 minutes.

Step 6: Cool and Slice

Let the pan rest on a wire rack for 15 minutes so the crumb sets. Use the parchment overhang to lift the whole cake out of the pan onto a cutting board. Slice it into squares while still warm, and the steam will rise and carry the smell of brown sugar and berries through the room.

A Few Notes Before You Start

• Butter temperature matters. If your butter is still cold from the fridge, cut it into small pieces and let it sit for about 20 minutes. It should dent easily under your thumb but not be greasy.
• Do not overmix the streusel. You want uneven clumps, not a uniform paste, so the topping stays crunchy.
• The cake is done when a skewer inserted into the center comes out clean, which usually happens right around the 50 minute mark. If you only hit a berry and get juice, test in a second spot.
• Letting the cake rest in the pan for those 15 minutes before lifting it out prevents the crumb from tearing. Slicing it too soon can cause the pieces to fall apart.

Bake times by pan size:

Keeping the Cake Fresh

• Refrigerate: leftover slices in a covered container for up to 4 days. The streusel will soften a little as it sits, but the cake underneath stays moist.
• Reheating: a slice in a 300°F oven or toaster oven for 5 minutes brings back some of the crisp top.
• Serve cold: straight from the fridge on a warm day, and the strawberry flavor tastes a little brighter that way.

What to Serve with Strawberry Coffee Cake

Pour a strong cup of black coffee or a milky latte, because the bitter edge of coffee plays off the sweet brown sugar crust nicely. For a casual brunch, add a bowl of plain yogurt and a handful of extra fresh berries on the side. If you want dessert, a scoop of vanilla ice cream melts into the warm cake without covering up the fruit.

Frequently Asked Questions

Can I use frozen strawberries?

Yes, and you do not need to thaw them first. Toss them into the batter straight from the freezer. The bake time may increase by about 5 minutes.

My cake sank in the middle. What went wrong?

Usually this means the batter was overmixed, or the cake was pulled from the oven before the center was fully set. Use the skewer test in two spots to be sure.

Can I make this cake ahead of time?

The whole cake can be baked a day ahead and kept covered at room temperature. Slice it just before serving so the cut edges stay fresh.

What if I do not have buttermilk?

Stir 1 teaspoon lemon juice or white vinegar into ¾ cup whole milk and let it sit for 5 minutes. It will thicken slightly and work the same way.

Strawberry Coffee Cake Recipe

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 50 minutes mins

Total Time 1 hour hr 5 minutes mins

Servings: 9 servings

Calories: 340

Ingredients Method Notes

Ingredients

  

• 2 cups all purpose flour
• 1 ½ tsp baking powder
• ½ tsp baking soda
• ½ tsp fine sea salt
• ½ cup unsalted butter, softened
• 1 cup granulated sugar
• 2 large eggs
• 2 tsp vanilla extract
• ¾ cup buttermilk
• 1 lb fresh strawberries, hulled and diced
• ½ cup packed light brown sugar
• ⅓ cup all purpose flour
• 1 tsp ground cinnamon
• 3 tbsp cold unsalted butter, diced

Method

 

1. Preheat oven to 350°F. In a medium bowl, whisk 2 cups flour, baking powder, baking soda, and salt.
2. In a large bowl, beat ½ cup butter and sugar until light, then mix in eggs and vanilla.
3. Alternate adding the flour mixture and buttermilk in three additions, stirring just until combined.
4. Gently fold in the diced strawberries with a spatula.
5. In the same medium bowl, mix brown sugar, ⅓ cup flour, and cinnamon. Work in 3 tbsp cold butter until clumpy. Scrape batter into a greased parchment lined 9 inch square pan, top with streusel, and bake 45 to 50 minutes until golden and a skewer comes out clean.
6. Cool in the pan 15 minutes, then lift out, slice, and serve warm.

Notes

If your berries are very ripe and release a lot of juice, pat them dry with a paper towel before folding them in. This keeps the crumb around them from getting too wet. A light dusting of powdered sugar on top just before serving looks nice but is completely optional.