Chocolaty Protein Brownie Mug Cake

This chocolaty protein brownie mug cake has all the decadence of a rich fudgy brownie while still keeping your macros in check. Incredibly delicious and packed with protein, this quick and easy brownie recipe only takes one minute to whip up and is the perfect healthy, guilt-free dessert. 

More Protein Recipes

If you're looking for more quick and delicious protein packed recipes for your weekly meal plan, here are a few I think you'll like.

• Proffee (EasyProtein Coffee)
• Easy Protein Blueberry Muffins
• Apple Cinnamon Weight Gain Smoothie
• Greek Yogurt Bowls with Warm Berry Sauce

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WHY MAKE MUG CAKES WITH PROTEIN POWDER?

Protein mug cakes are a great addition to your recipe box if you're looking to add more protein to your diet while being able to control your fat and carbohydrate intake. This recipe is easily tailored to meet your macros. Need more carbs? Add some yummy chocolate chips or toffee bits. Need more fats? Add nuts on coconut, or top with a warm peanut butter drizzle. 

If you’re an athlete who cycles between bulking and leaning up, this is the perfect dessert recipe to keep you on track no matter where you are in your nutrition and fitness cycle. And, if you’re looking to add casein protein to your diet, this recipe is a great place to start!

Likewise, if you are just looking to eat healthier and lose weight, this is a decadent dessert that’s delicious, easy to make, and won’t blow your diet. 

Here's a great protein smoothie recipe to add to your protein powder recipe box.

HOW DO YOU MAKE A PROTEIN BROWNIE? 

To make this gooey brownie recipe add all ingredients to a shaker (blender) bottle and shake until the brownie is well mixed. Pour your batter into a microwave-safe bowl or coffee mug and microwave for 60 seconds. As with most mug cakes, this protein brownie is best enjoyed while still warm and gooey. 

If you don’t have a shaker bottle, you can mix all ingredients together in a bowl with a spoon before cooking. 

INGREDIENTS

Chocolate Protein Powder 

Whey protein, casein protein, or a vegan protein powder will all work well. I normally use whey protein when I'm having a brownie for breakfast and use casein protein powder when I'm enjoying a bedtime snack.

Oat Flour

Oat flour is a great choice for this recipe as it gives a bump in fiber and helps to keep you fuller longer. If you don't have oat flour feel free to use plain flour or almond flour. Read more to learn how to make your own oat flour.

Baking Powder

baking powder is what makes this brownie rise and fluff up.

Egg

2 egg whites or 1 flax egg may be used in place of one whole egg.

Honey or Maple Syrup (Optional)

1-2 tablespoons to taste if your protein powder is unsweetened.

Oat Milk

I love using oat milk, but feel free to use dairy milk, almond milk, soy milk, or water.

Salt

Salt helps to intensify the chocolate and sweetness of your brownie.

Vanilla Extract

Vanilla extract is added to give your brownie depth and round out the flavors.

INSTRUCTIONS

Combine all ingredients in a shaker (blender) bottle.

Shake until brownie batter is well mixed, about 30 seconds. 

Pour batter into a microwave-safe bowl or coffee mug.

Microwave for 60 seconds for a fudgy moist brownie or a bit longer for a more cake-like brownie. 

RECIPE SUBSTITUTIONS

Low Fat Substitute 

For a lower-fat protein brownie, use 2 egg whites in place of the 1 whole egg. 

Vegan-Friendly Protein Brownie 

For a vegan option, use a plant-based protein powder, one flax or chia egg in place of the egg, and replace the honey with maple syrup. 

Dairy-Free Mug Cake

To make this mug cake dairy-free use plant-based soy or pea protein powder. 

Low Carb Option

If you’re looking for a low-carb protein brownie, omit the oat flour and replace the oat milk with unsweetened almond milk.

If your protein powder is already sweetened, you may not need any additional sweeteners. 

WHAT ADD-INS WORK FOR THIS CHOCOLATY PROTEIN CAKE?

The add-ins and toppings are an easy way to customize your brownie to fit your macros or just to mix things up a bit. If you’re looking for more fats in your diet, nuts, peanut butter, and coconut are all great choices. Need more carbs? Chocolate chips, toffee bits, or a caramel drizzle are yummy options. 

BROWNIE BATTER ADD-INS

• Chocolate chips - Milk chocolate, dark chocolate, semi-sweet, white chocolate, or sugar-free
• Nuts - pecans, walnuts, almonds, hazelnuts
• Peanut Butter Powder (1-2 Tablespoons)
• Toffee bits
• Shredded coconut

BROWNIE MUG CAKE TOPPINGS

•  Peanut butter drizzle
• Whipped cream
• Melted chocolate
• Caramel sauce
• Homemade cinnamon whipped cream

EXPERT TIPS

MICROWAVE COOKING TIME

Microwaves may vary in their cooking time. Start with 60 seconds and adjust as needed. Cook longer for a more cake-like brownie and shorter for a more moist texture. 

ADJUSTING THE SWEETNESS

This protein brownie mug cake recipe is not overly sweet. If you aren’t eating a low-carb diet, feel free to add more honey or top your brownie with chocolate chips as it comes out of the microwave. The chocolate chips will melt into your brownie and create a gooey, chocolaty topping. 

MORE HEALTHY CHOCOLATE RECIPES

OAT MILK HOT CHOCOLATE

DARK CHOCOLATE BARK WITH TOASTED QUINOA, OATS, & SEEDS

SALTED CHOCOLATE ESPRESSO NUT CLUSTERS

HONEY ALMOND DARK CHOCOLATE WITH CACAO NIBS

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