I just whipped up a Microwave Cookie Cake in under five minutes that somehow hits exactly like a snickerdoodle, so keep scrolling—you’ll want this recipe.

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I adore this snickerdoodle mug cake because it tastes like a warm, slightly crackled cookie stuffed into cake form and I can’t stop eating it. I love that the cinnamon-sugary top gives crunch against the pillowy crumb.

I’m obsessed with how the brown sugar and vanilla extract play off each other, making it sweet but a little tangy. It’s my go-to when I want a Quick Sweet Treat Recipe or an Easy Desserts With Basic Ingredients fix.

But mostly I love that it feels indulgent and childish and totally justified. Pure snickerdoodle joy.

No regrets, ever. I’d eat it daily.

Ingredients

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All-purpose flour: the cake’s body, gives structure and that soft, cakey bite.
Granulated sugar: straightforward sweetness and tiny crunch if you get a crisp edge.
Light brown sugar: adds molasses warmth and keeps the cake a bit fudgy.
Cream of tartar: gives that snickerdoodle tang and helps a soft rise.
Baking soda: reacts for lift and a slightly open, tender crumb.
Pinch of salt: balances sweetness and makes everything taste more real.
Milk: loosens the batter, makes it tender; add a splash if needed.
Melted butter or oil: adds richness and keeps the cake moist and cozy.
Vanilla extract: warms flavors and makes it smell homey and sweet.
Egg yolk: keeps it super moist and gives a silky, dense texture.
Cinnamon sugar topping: classic crunch and that warm cinnamon kiss on top.

Ingredient Quantities

4 tablespoons all purpose flour (about 30 g)

2 tablespoons granulated sugar

1 tablespoon packed light brown sugar

1/8 teaspoon cream of tartar

1/8 teaspoon baking soda

pinch of salt

3 tablespoons milk (any kind, a little more if batter seems thick)

1 tablespoon melted butter or neutral oil

1/2 teaspoon vanilla extract

1 large egg yolk (helps keep it moist, you can use a whole egg if you prefer)

1 teaspoon granulated sugar mixed with 1/2 teaspoon ground cinnamon for topping

How to Make this

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1. Grab a microwave safe mug (10 to 12 ounce works best) and add 4 tbsp all purpose flour, 2 tbsp granulated sugar, 1 tbsp packed light brown sugar, 1/8 tsp cream of tartar, 1/8 tsp baking soda and a pinch of salt; stir together so the dry stuff is evenly mixed.

2. In a small bowl or directly in the mug make a little well in the center and add 3 tbsp milk, 1 tbsp melted butter or neutral oil, 1/2 tsp vanilla extract and 1 large egg yolk (or use a whole egg if you prefer a bit more rise); mix until you have a smooth batter, scraping the bottom so no flour pockets remain. If it seems too thick, add another splash of milk.

3. Give the batter a quick taste to check sweetness, but dont overdo it since its raw egg. Adjust with a tiny pinch more sugar if you like it sweeter.

4. In a separate small dish mix 1 tsp granulated sugar with 1/2 tsp ground cinnamon for the topping.

5. Sprinkle about half of the cinnamon sugar into the batter and gently fold it in so you get little pockets of cinnamon flavor, then smooth the top with a spoon.

6. Sprinkle the remaining cinnamon sugar over the surface, spreading it to the edges so the top browns and gets that classic snickerdoodle finish.

7. Microwave on high for 60 seconds, then check. If the center is still very wet, microwave in additional 10 to 15 second bursts until the cake is set but still moist. Total time usually 65 to 90 seconds depending on your microwave.

8. Let the mug cake rest in the microwave or on the counter for 30 to 60 seconds before digging in. It continues to cook a bit and will be hot.

9. Optional: top with a little extra melted butter, a dusting of cinnamon sugar, or a scoop of vanilla ice cream for extra indulgence.

10. Eat straight from the mug with a spoon. Dont worry if the texture is a little rustic, thats part of the charm. Enjoy your quick snickerdoodle treat.

Equipment Needed

1. Microwave-safe mug (10 to 12 oz)
2. Measuring spoons (1/8 tsp to 1 tbsp)
3. Tablespoon measure or small dry measuring cup
4. Small bowl (for mixing or melting butter)
5. Spoon or small whisk (for batter)
6. Small dish or ramekin (for cinnamon sugar)
7. Microwave
8. Heatproof mitt or kitchen towel
9. Teaspoon or small spatula (to smooth and fold)
10. Dessert spoon (to eat straight from the mug)

FAQ

Q: Can I use a whole egg instead of just the yolk? A: Yes, you can use a whole egg, it will make the cake a little lighter and more cake like, but a yolk gives extra moistness. If using a whole egg cut the milk by about 1 teaspoon to keep batter from getting too runny.

Q: My mug cake came out rubbery, what went wrong? A: Most likely it was overcooked or microwaved at too high power. Try reducing time by 10 to 15 seconds or use 70 to 80 percent power. Also make sure you measured the flour correctly, packing it will make it dense.

Q: How do I tell when it's done without drying it out? A: The top should look set but still slightly glossy and a toothpick or clean spoon inserted in the center should come out with a few moist crumbs not wet batter. If the tip is wet, microwave 5 to 10 seconds more and check again.

Q: Can I bake this in the oven instead of microwave? A: Yep. Pour batter into a small ramekin and bake at 350 F for about 10 to 15 minutes. Check earlier because oven times vary. It'll be a little more evenly browned than the microwave version.

Q: How should I store leftovers? A: Cover the mug or transfer cake to an airtight container and refrigerate up to 2 days. Reheat in the microwave 10 to 20 seconds, but don't overdo it or it gets tough. You can also warm it in a toaster oven for a minute or two.

Q: Any good variations or add ins? A: Yep, stir in a tablespoon of chocolate chips or chopped apple for a twist. You can swap half the flour for oat flour for nuttier flavor, or add a pinch of nutmeg for extra warmth. If you want cheesecake vibes, drop a spoonful of cream cheese in center before cooking.

Snickerdoodle Mug Cake Recipe Substitutions and Variations

All purpose flour: use 4 tbsp of a 1:1 gluten free baking blend for a similar texture, or 3 tbsp oat flour plus 1 tbsp cornstarch for lightness, or 3 tbsp almond flour + 1 tbsp extra all purpose if you still have some on hand. Measurements might need tiny adjustments, so eyeball the batter.
Milk: swap with the same amount of almond, soy or oat milk for a dairy free cake, or use 3 tbsp plain yogurt thinned with a splash of water for extra tang and moisture. Don’t overdo the thickness.
Melted butter: substitute neutral oil (canola, vegetable) 1:1, use melted coconut oil for a light coconut note, or try 1 tbsp applesauce to cut fat and keep it moist, though the crumb will be slightly different.
Egg yolk: use a whole egg for firmer structure, or make a flax egg (1 tbsp flax meal + 2.5 tbsp water, let sit) for vegan option, or use 2 tbsp mashed banana for sweetness and moisture, expect a small flavor change.

Pro Tips

1) Warm the milk a little before mixing if your melted butter is hot. It helps everything meld without cooking the yolk, and the batter will be smoother. If it still looks thick, add milk by teaspoons not tablespoons so you dont overshoot.

2) Mix the dry stuff really well first, then make a little well for the wet. That way you avoid floury clumps at the bottom of the mug, and you’ll get a more even crumb. A fork works fine here if you dont want to wash another spoon.

3) Rotate the mug halfway through an extra 10 second burst if your microwave has hot spots. Microwaves heat unevenly, so turning the mug helps the center set without drying the edges.

4) Let it rest at least 30 seconds after microwaving. It keeps cooking a touch and will be way less likely to spray hot batter when you dig in. If you like it extra moist, eat straight from the mug while it’s still warm; if you want a neater slice, let it cool a minute longer.

Snickerdoodle Mug Cake Recipe

Recipe by Tina Bueller

0.0 from 0 votes

I just whipped up a Microwave Cookie Cake in under five minutes that somehow hits exactly like a snickerdoodle, so keep scrolling—you'll want this recipe.

Servings

servings

Calories

456

kcal

Equipment: 1. Microwave-safe mug (10 to 12 oz)
2. Measuring spoons (1/8 tsp to 1 tbsp)
3. Tablespoon measure or small dry measuring cup
4. Small bowl (for mixing or melting butter)
5. Spoon or small whisk (for batter)
6. Small dish or ramekin (for cinnamon sugar)
7. Microwave
8. Heatproof mitt or kitchen towel
9. Teaspoon or small spatula (to smooth and fold)
10. Dessert spoon (to eat straight from the mug)

Ingredients

4 tablespoons all purpose flour (about 30 g)
2 tablespoons granulated sugar
1 tablespoon packed light brown sugar
1/8 teaspoon cream of tartar
1/8 teaspoon baking soda
pinch of salt
3 tablespoons milk (any kind, a little more if batter seems thick)
1 tablespoon melted butter or neutral oil
1/2 teaspoon vanilla extract
1 large egg yolk (helps keep it moist, you can use a whole egg if you prefer)
1 teaspoon granulated sugar mixed with 1/2 teaspoon ground cinnamon for topping

Directions

Grab a microwave safe mug (10 to 12 ounce works best) and add 4 tbsp all purpose flour, 2 tbsp granulated sugar, 1 tbsp packed light brown sugar, 1/8 tsp cream of tartar, 1/8 tsp baking soda and a pinch of salt; stir together so the dry stuff is evenly mixed.
In a small bowl or directly in the mug make a little well in the center and add 3 tbsp milk, 1 tbsp melted butter or neutral oil, 1/2 tsp vanilla extract and 1 large egg yolk (or use a whole egg if you prefer a bit more rise); mix until you have a smooth batter, scraping the bottom so no flour pockets remain. If it seems too thick, add another splash of milk.
Give the batter a quick taste to check sweetness, but dont overdo it since its raw egg. Adjust with a tiny pinch more sugar if you like it sweeter.
In a separate small dish mix 1 tsp granulated sugar with 1/2 tsp ground cinnamon for the topping.
Sprinkle about half of the cinnamon sugar into the batter and gently fold it in so you get little pockets of cinnamon flavor, then smooth the top with a spoon.
Sprinkle the remaining cinnamon sugar over the surface, spreading it to the edges so the top browns and gets that classic snickerdoodle finish.
Microwave on high for 60 seconds, then check. If the center is still very wet, microwave in additional 10 to 15 second bursts until the cake is set but still moist. Total time usually 65 to 90 seconds depending on your microwave.
Let the mug cake rest in the microwave or on the counter for 30 to 60 seconds before digging in. It continues to cook a bit and will be hot.
Optional: top with a little extra melted butter, a dusting of cinnamon sugar, or a scoop of vanilla ice cream for extra indulgence.
Eat straight from the mug with a spoon. Dont worry if the texture is a little rustic, thats part of the charm. Enjoy your quick snickerdoodle treat.

Notes

Below you’ll find my best estimate of this recipe’s nutrition facts. Treat the numbers as a guide rather than a rule—great food should nourish both body and spirit. Figures are approximate, and the website owner assumes no liability for any inaccuracies in this recipe.