One-Bowl Lemon Poppy Seed Sheet Cake

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A tender, moist lemon cake speckled with poppy seeds and topped with tangy lemon glaze, baked in one pan for easy cleanup. This american-inspired desserts ready in about 45 minutes layers all-purpose flour, baking powder, salt into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 220 calories and feeds 9, so it slots into a weekend bake or a special-occasion dessert tray. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 10 min Cook: 35 min Serves 9 American cuisine 220 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 350°F. Grease and flour a 9x9-inch square baking pan.
  2. Step 2: In a large bowl, whisk together 1 1/2 cups all-purpose flour, 1 1/2 teaspoons baking powder, 1/4 teaspoon salt, and 2 tablespoons poppy seeds.
  3. Step 3: Add 1 cup granulated sugar, 1/2 cup melted unsalted butter, 2 large eggs, 1/2 cup whole milk, 1/4 cup fresh lemon juice, and 1 tablespoon lemon zest to the dry ingredients.
  4. Step 4: Using a hand mixer, beat on medium speed until the batter is smooth and well combined, about 2 minutes.
  5. Step 5: Pour batter into the prepared pan and spread evenly.
  6. Step 6: Bake for 30-35 minutes, or until a toothpick inserted in the center comes out clean and the edges are golden.
  7. Step 7: Let the cake cool completely in the pan before slicing and serving.

Frequently asked questions

How long does One-Bowl Lemon Poppy Seed Sheet Cake take to make?

Total time is about 45 minutes (10 min prep + 35 min cook). Most home bakers find this fits a weekend afternoon; chill or store as the recipe directs before serving.

How do I store leftover One-Bowl Lemon Poppy Seed Sheet Cake?

Cool fully before storing. Most baked desserts keep at room temperature in an airtight container for 2–3 days, or in the fridge for up to 5 days. Cream- or custard-based desserts must go in the fridge within 2 hours; reheat gently or serve cold per the recipe.

Can I substitute ingredients in One-Bowl Lemon Poppy Seed Sheet Cake?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale One-Bowl Lemon Poppy Seed Sheet Cake for a different number of people?

The recipe is written for 9 servings. Multiply each ingredient by (your serving target / 9). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with One-Bowl Lemon Poppy Seed Sheet Cake?

American desserts like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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