French Butter Cake Easy One-Bowl Recipe (Ready in 45 Minutes)

Why You’ll Love This French Butter Cake

• Pantry ingredients. Butter, sugar, eggs, flour, sour cream — nothing fancy.
• One pan, minimal dishes. A 9×9-inch baking dish is all you need.
• No frosting required. The sugar topping bakes into a sweet, crunchy lid.
• Feeds a crowd. One pan yields 12–16 squares, perfect for brunch, bake sales or a weeknight treat.
• Make-ahead friendly. The sour cream keeps the crumb moist for days.

Recipe at a Glance

Ingredients

For the cake

• 1 cup (200 g) granulated sugar
• 1 cup (226 g / 2 sticks) unsalted butter, melted and slightly cooled
• 3 large eggs, at room temperature
• 2½ teaspoons pure vanilla extract
• 2 cups (about 230 g) cake flour
• 2 teaspoons baking powder
• 1 teaspoon salt
• ⅔ cup (160 g) sour cream, at room temperature

For the topping

• 2 tablespoons granulated sugar

Ingredient notes

• Cake flour gives this cake its soft, fine crumb. No cake flour? Measure 2 cups all-purpose flour, remove 4 tablespoons, replace them with 4 tablespoons cornstarch, and sift together twice.
• Sour cream adds moisture and a gentle tang. Full-fat plain Greek yogurt is the closest swap.
• Room-temperature eggs and sour cream blend smoothly into the melted butter. Cold ingredients can make the butter seize into little clumps.
• Unsalted butter lets you control the salt. If you only have salted, cut the added salt to ½ teaspoon.

How to Make French Butter Cake (Step by Step)

1. Prep the pan and oven. Heat the oven to 350°F and grease a 9×9-inch baking dish. For easy removal, line it with a parchment sling.
2. Whip the butter and sugar. In a large bowl, beat the melted butter and 1 cup sugar for about a minute, until the mixture looks paler and slightly fluffy.
3. Add the eggs and vanilla. Beat in the eggs one at a time, letting each disappear before adding the next, then mix in the vanilla.
4. Sift the dry ingredients. In a separate bowl, sift the cake flour, baking powder and salt together.
5. Combine gently. Add the dry mixture to the wet ingredients a little at a time, mixing on low or by hand just until no dry streaks remain.
6. Fold in the sour cream. Use a spatula to fold the sour cream through the batter until smooth. The batter will be thick.
7. Top and bake. Spread the batter evenly in the pan, sprinkle the 2 tablespoons of sugar over the surface, and bake for 30–35 minutes, until the top is golden and a toothpick in the center comes out clean.
8. Cool, then slice. Let the cake cool in the pan before cutting into squares. It firms up and slices more cleanly as it cools.

[IMAGE: Golden French butter cake squares with crackly sugar top on a wooden board — alt text: “Sliced French butter cake squares with a crisp sugar crust”]

Tips for the Best Butter Cake

• Don’t overmix. Once the flour goes in, stop as soon as it’s combined. Extra mixing develops gluten and makes the cake tough instead of tender.
• Let the butter cool slightly. Hot butter can scramble the eggs. Warm to the touch is perfect.
• Check early. Ovens vary; start testing at 28–30 minutes. Overbaking is the fastest way to a dry cake.
• Use a metal pan for crisper edges or glass for a softer edge — if using glass, check a few minutes sooner.
• Be generous with the topping. That sugar layer is the signature crackle, so cover the whole surface evenly.

Easy Variations

[INTERNAL LINK: easy pound cake recipe] [INTERNAL LINK: sour cream coffee cake]

How to Serve It

This cake is lovely plain, but a few easy pairings make it feel special:

• Fresh strawberries, raspberries or blueberries
• A spoonful of lightly sweetened whipped cream
• A scoop of vanilla ice cream for dessert
• A hot cup of coffee or tea for breakfast or an afternoon break

[INTERNAL LINK: quick homemade whipped cream]

Storage and Make-Ahead

• Room temperature: Cover tightly and keep for up to 3 days.
• Refrigerator: Store in an airtight container for up to 5 days; bring to room temperature before serving for the best texture.
• Freezer: Wrap individual squares in plastic wrap and foil and freeze for up to 3 months. Thaw on the counter for about an hour.

Frequently Asked Questions

What is French butter cake?

French butter cake is a simple, buttery cake baked in one pan and topped with sugar that forms a crisp crust. Its texture falls between a pound cake and a coffee cake: rich and moist, but still soft and tender.

Can I use all-purpose flour instead of cake flour?

Yes. For every cup of all-purpose flour, remove 2 tablespoons and replace them with 2 tablespoons of cornstarch, then sift. The cake will be slightly less delicate than with true cake flour, but still very good.

Can I bake this in a different pan?

An 8×8-inch pan works but makes a thicker cake, so expect to add 5–10 minutes. For a 9×13-inch pan, double the recipe and start checking at about 30 minutes.

Why did my butter cake turn out dense or tough?

The usual culprit is overmixing after the flour is added. Cold eggs or sour cream can also cause problems by firming up the melted butter. Mix gently and use room-temperature ingredients.

Does French butter cake need frosting?

No. The sugar sprinkled on top bakes into a sweet, crackly crust, so the cake is complete on its own. Berries or whipped cream are optional extras.

The Bottom Line

This French butter cake proves that a truly great cake can come from a handful of pantry staples and one square pan. Melted butter and sour cream keep it rich and moist, and the sugar crust gives every bite a little crunch. Bake a pan this weekend, and try the lemon or berry variation next time.

Recipe adapted from 12 Tomatoes, which credits Buttermilk by Sam.

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