Mardi Gras King Cake Donuts

Last February, my sister called me at 10pm on Fat Tuesday, absolutely convinced we needed to bake something festive or risk bad luck for the entire year. We ended up making these donuts in my tiny apartment kitchen with flour everywhere and purple sprinkles ground into the rug, laughing so hard we cried when I accidentally dipped an entire donut into the green glaze instead of just the top.

My roommate walked in mid-decorating session and immediately asked if we were having a toddler birthday party, but one taste of that warm cinnamon-sugar center and she was grabbing her own sprinkle-covered donut. Now we make them every year, and the best part is arguing over who gets to lick the extra glaze off the spoon.

Ingredients

• 2 cups all-purpose flour: The foundation that gives these donuts their tender crumb without becoming too dense
• 1/2 cup granulated sugar: Just enough sweetness to let the cinnamon swirl shine without overpowering
• 2 tsp baking powder: The secret to that perfect bakery-style lift in every bite
• 1/2 tsp ground cinnamon: A subtle background warmth that plays beautifully with the swirl
• 1/2 tsp salt: Balances all that sugar and lets the flavors really pop
• 2/3 cup whole milk: Creates the most tender texture I have found, though low-fat works in a pinch
• 2 large eggs: Room temperature eggs incorporate better and give you that lovely golden color
• 1/4 cup unsalted butter, melted: I learned the hard way that salted butter throws off the balance here
• 1 tsp pure vanilla extract: Never skip this, it is what makes people ask what your secret ingredient is
• 2 tbsp unsalted butter, softened: For the cinnamon swirl, softened butter spreads like a dream and creates those gorgeous ribbons
• 1/4 cup brown sugar: The molasses in brown sugar creates pockets of gooey caramel-like goodness
• 1 tsp ground cinnamon: This is the star of the show, so do not be shy with it
• 1 1/2 cups powdered sugar: Sift it first or you will end up with lumpy glaze like I did my first time
• 2–3 tbsp milk: Start with 2 tablespoons and add more until you reach that perfect pourable consistency
• 1/2 tsp vanilla extract: Because vanilla makes everything better, even the frosting
• Purple, green, and gold/yellow sprinkles: The official Mardi Gras colors that make these instantly recognizable and totally festive

Instructions

Get your oven ready:

Preheat to 350°F and generously grease your donut pan, getting into all those little corners

Whisk the dry ingredients:

In a large bowl, combine the flour, granulated sugar, baking powder, cinnamon, and salt until everything is evenly distributed

Mix the wet ingredients:

In another bowl, whisk the milk, eggs, melted butter, and vanilla extract until they are one smooth, happy family

Combine the batters:

Pour the wet ingredients into the dry and mix gently until just combined, some small lumps are totally fine and keep the donuts tender

Make the cinnamon swirl magic:

Mix the softened butter, brown sugar, and cinnamon in a small bowl until it forms a spreadable paste

Layer the love:

Spoon half the batter into the donut pan, pipe a ring of cinnamon swirl onto each one, and cover with the remaining batter

Bake to perfection:

Bake for 10 to 12 minutes until they spring back when touched, then cool for 5 minutes before moving them to a wire rack

Create the glaze:

Whisk the powdered sugar, milk, and vanilla until you have a smooth, glossy glaze that pours off the whisk like liquid silk

The grand finale:

Dip each cooled donut into the glaze and immediately cover with purple, green, and gold sprinkles before the glaze sets

Save to Pinterest

Last year I brought a dozen of these to work and people were literally hovering around the breakroom table. The best moment was when my coworker from New Orleans took one bite and got quiet, then said it tasted exactly like the king cakes from his childhood bakery.

Getting That Perfect Cinnamon Swirl

The trick to a beautiful cinnamon swirl is making sure your butter is truly softened but not melted. I use a small zip-top bag with the corner snipped off to pipe the swirl in a perfect circle, which is way easier than trying to spoon it evenly.

Glaze Like A Pro

Work quickly once you start dipping because the sprinkles need to stick while the glaze is still wet. I set up three bowls of sprinkles ahead of time so I can alternate colors without making a total mess of my workspace.

Make-Ahead Magic

You can bake the donuts a day ahead and store them unfrosted in an airtight container. The morning you want to serve them, just glaze and decorate and they taste freshly baked.

• Warm the unfrosted donuts for 10 seconds in the microwave before glazing
• Set up your decorating station before you start mixing the glaze
• Have extra sprinkles on hand because somehow they always end up everywhere

Save to Pinterest

Whether you are celebrating Fat Tuesday or just need a little joy in your Tuesday, these donuts bring the party to your kitchen. Laissez les bons temps rouler, my friends.

Recipe FAQs

→ What makes these donuts unique for Mardi Gras?

The vivid purple, green, and gold sprinkles atop a cinnamon-swirled donut provide a festive tribute to traditional Mardi Gras colors and flavors.

→ Can these be baked instead of fried?

Yes, these donuts are baked to achieve a tender texture while maintaining the classic swirl and festive appearance.

→ How is the cinnamon swirl incorporated?

A buttery cinnamon and brown sugar mixture is piped or dotted onto half the batter before topping with the remaining batter, creating a flavorful swirl inside.

→ What is the best way to apply the glaze?

Once cooled, dip each donut into a smooth vanilla glaze, then immediately decorate with sprinkles to ensure they stick properly.

→ How can I store these donuts to maintain freshness?

Store in an airtight container at room temperature for up to two days to keep the donuts soft and fresh.