Cinnamon Sugar Muffins With Crackly Tops

Name: Cinnamon Sugar Donut Muffins With Crackly Tops
Prep time: 20 min
Cook time: 18 min
Total time: 45 min
Yield: 12 standard muffins
Cuisine: International
Ingredients: 2 cups (250g) all-purpose flour, spooned and leveled; 2 teaspoons baking powder; 1/2 teaspoon fine salt; 1/2 teaspoon ground cinnamon; 1/4 teaspoon ground nutmeg; 3/4 cup (150g) granulated sugar; 1/2 cup (113g) unsalted butter, melted and cooled for 5 minutes; 2 large eggs, at room temperature if possible; 3/4 cup (180ml) whole milk, at room temperature if possible; 1/4 cup (60g) sour cream or plain whole-milk yogurt; 2 teaspoons vanilla extract; 5 tablespoons (70g) unsalted butter, melted; 1/2 cup (100g) granulated sugar; 2 teaspoons ground cinnamon; 1/8 teaspoon fine salt

Imperial June 10, 2026June 10, 2026

Quick Recipe Version (TL;DR)

Yield: 12 standard muffins
Prep Time: 20 minutes
Cook Time: 18 minutes
Total Time: 45 minutes

Quick Ingredients

Muffins: 2 cups all-purpose flour, 2 teaspoons baking powder, 1/2 teaspoon fine salt, 1/2 teaspoon cinnamon, 1/4 teaspoon nutmeg, 3/4 cup granulated sugar, 1/2 cup melted unsalted butter, 2 large eggs, 3/4 cup whole milk, 1/4 cup sour cream or plain yogurt, 2 teaspoons vanilla extract
Cinnamon Sugar Coating: 5 tablespoons melted unsalted butter, 1/2 cup granulated sugar, 2 teaspoons cinnamon, 1/8 teaspoon fine salt

Do This

1. Heat oven to 375°F and prepare a 12-cup muffin pan with liners or nonstick spray.
2. Whisk flour, baking powder, salt, cinnamon, nutmeg, and sugar in a large bowl.
3. Whisk melted butter, eggs, milk, sour cream, and vanilla in a separate bowl until smooth.
4. Fold wet ingredients into dry ingredients just until combined; do not overmix.
5. Divide batter evenly among 12 muffin cups, filling each about three-quarters full.
6. Bake for 16 to 18 minutes, until golden and a toothpick comes out clean.
7. Brush warm muffins with melted butter, roll or sprinkle generously with cinnamon sugar, and cool for 10 minutes.

Why You’ll Love This Recipe

Warm, nostalgic flavor: These muffins taste like a cozy mix of buttered cinnamon toast, soft vanilla cake, and a sugar-dusted donut.
Crackly cinnamon sugar crust: A warm butter coating helps the cinnamon sugar cling to the tops for a sweet, lightly crisp finish.
Simple pantry ingredients: No mixer, specialty pan, or fancy technique needed.
Soft and golden inside: Melted butter, milk, and sour cream keep the crumb tender without making the muffins heavy.

Grocery List

Produce: None required; optional orange zest if making the citrus variation.
Dairy: Unsalted butter, whole milk, sour cream or plain whole-milk yogurt, large eggs.
Pantry: All-purpose flour, granulated sugar, baking powder, fine salt, ground cinnamon, ground nutmeg, vanilla extract, nonstick spray or paper muffin liners.

Full Ingredients

For the Muffins

2 cups (250g) all-purpose flour, spooned and leveled
2 teaspoons baking powder
1/2 teaspoon fine salt
1/2 teaspoon ground cinnamon
1/4 teaspoon ground nutmeg
3/4 cup (150g) granulated sugar
1/2 cup (113g) unsalted butter, melted and cooled for 5 minutes
2 large eggs, at room temperature if possible
3/4 cup (180ml) whole milk, at room temperature if possible
1/4 cup (60g) sour cream or plain whole-milk yogurt
2 teaspoons vanilla extract

For the Cinnamon Sugar Coating

5 tablespoons (70g) unsalted butter, melted
1/2 cup (100g) granulated sugar
2 teaspoons ground cinnamon
1/8 teaspoon fine salt

Cinnamon Sugar Muffins With Crackly Tops – Closeup

Step-by-Step Instructions

Step 1: Prepare the oven and muffin pan

Preheat the oven to 375°F. Line a standard 12-cup muffin pan with paper liners, or grease the cups well with nonstick spray. If you want the most donut-like cinnamon sugar coating, skip the liners and grease the pan instead so you can roll more of each muffin in the topping after baking.

Step 2: Mix the cinnamon sugar coating

In a shallow bowl, stir together 1/2 cup granulated sugar, 2 teaspoons ground cinnamon, and 1/8 teaspoon fine salt. Set it aside. Melt the 5 tablespoons butter for the coating in a separate small bowl and keep it nearby for finishing the warm muffins.

Step 3: Combine the dry ingredients

In a large mixing bowl, whisk together the flour, baking powder, salt, cinnamon, nutmeg, and granulated sugar. Whisk for about 30 seconds to evenly distribute the leavening and spices. This helps the muffins rise evenly and keeps pockets of baking powder from forming in the batter.

Step 4: Whisk the wet ingredients

In a medium bowl, whisk the melted and slightly cooled butter with the eggs until blended. Add the whole milk, sour cream or yogurt, and vanilla extract, then whisk until smooth. The mixture may look slightly thick from the sour cream, which is exactly what helps create a soft, cake-like crumb.

Step 5: Make the muffin batter

Pour the wet ingredients into the dry ingredients. Use a flexible spatula to fold the mixture together just until no large streaks of flour remain, about 12 to 15 gentle folds. The batter should be thick and slightly lumpy. Avoid beating or overmixing, which can make the muffins tough instead of tender.

Step 6: Fill the muffin cups

Divide the batter evenly among the 12 prepared muffin cups, using about 3 heaping tablespoons of batter per cup. Each cup should be about three-quarters full. Smooth the tops lightly if needed, but do not press the batter down.

Step 7: Bake until golden

Bake on the center rack at 375°F for 16 to 18 minutes, or until the muffins are puffed, lightly golden, and a toothpick inserted into the center comes out clean or with a few moist crumbs. If using an instant-read thermometer, the centers should register about 200°F to 205°F.

Step 8: Butter and coat the warm muffins

Let the muffins cool in the pan for 5 minutes, then transfer them to a wire rack. While they are still warm, brush the tops generously with melted butter and immediately dip or sprinkle them with the cinnamon sugar mixture. For a full donut-style coating, remove any liners, brush the tops and sides with butter, and gently roll each muffin in the cinnamon sugar. Let the coated muffins rest for 10 minutes so the sweet crust can set into a lightly crackly finish.

Pro Tips

Measure the flour gently: Spoon flour into the measuring cup and level it off. Scooping directly from the bag can pack in too much flour and make the muffins dry.
Use room-temperature dairy if you can: Milk, eggs, and sour cream blend more smoothly when they are not cold, giving the muffins a more even crumb.
Do not overmix: A few small lumps in muffin batter are good. Overmixing develops gluten and can make the muffins chewy.
Coat while warm: The butter and cinnamon sugar cling best when the muffins are warm but not too hot to handle.
For extra crunch: After coating, let the muffins sit uncovered on a rack for 10 to 15 minutes before storing so the sugar crust has time to dry slightly.

Variations

Brown Butter Cinnamon Sugar Muffins: Brown the 1/2 cup butter for the batter until nutty and amber, then cool it for 10 minutes before using. This adds a toasted, almost caramel-like flavor.
Cinnamon Swirl Muffins: Before baking, spoon half the batter into the cups, add 1/2 teaspoon cinnamon sugar to each, top with remaining batter, and gently swirl with a toothpick.
Orange Cinnamon Muffins: Add 1 tablespoon finely grated orange zest to the sugar in the muffin batter for a bright, bakery-style aroma.

Storage & Make-Ahead

Store cooled cinnamon sugar muffins in an airtight container at room temperature for up to 2 days. For the best texture, place a paper towel under and over the muffins to absorb excess moisture and help preserve the sugar crust. To refresh, warm a muffin in a 300°F oven for 5 minutes. For longer storage, freeze the muffins without the cinnamon sugar coating for up to 2 months. Thaw at room temperature, warm briefly, then brush with melted butter and coat with fresh cinnamon sugar before serving. You can also mix the dry ingredients and the cinnamon sugar topping up to 3 days ahead and store them separately in airtight containers.

Nutrition (per serving)