
This simple microwave chocolate cake has been my emergency dessert solution for years, perfect for those sudden sweet cravings without the fuss of baking a full cake. The Hershey's syrup gives it that rich, deep chocolate flavor while keeping the ingredient list remarkably short.
I discovered this recipe during a late night chocolate craving when I had no eggs in the house. What started as a desperate experiment has become my most requested quick dessert when friends drop by unexpectedly.
Ingredients
- All purpose flour: Provides the structure for this tiny cake without making it too dense
- Sugar: Balances the chocolate without overwhelming sweetness
- Hershey's chocolate syrup: Delivers intense chocolate flavor without additional melting steps
- Baking powder: Creates the perfect rise even without eggs look for aluminum free for best flavor
- Butter or oil: Adds moisture and richness choose butter for more flavor or oil for dairy free option
Step-by-Step Instructions
- Gather ingredients:
- Collect all ingredients and a microwave safe mug or ramekin that holds at least 8 ounces to allow room for rising
- Combine dry ingredients:
- Mix the flour, sugar, and baking powder in your mug until completely blended to ensure even rising
- Add wet ingredients:
- Pour in the Hershey's syrup and melted butter or oil and stir thoroughly until you have a smooth batter with no dry spots
- Microwave the cake:
- Place in microwave and cook on high for exactly 60 seconds the cake will rise dramatically but settle as it cools
- Rest and serve:
- Allow to cool for 45 seconds before enjoying either directly from the mug or turned out onto a plate with optional ice cream

The Hershey's syrup is truly the secret weapon in this recipe. I once tried substituting homemade chocolate sauce and while delicious, it never achieved that perfectly moist texture that the classic syrup provides.
Perfecting Your Microwave Timing
Microwave power varies significantly between models, so your first attempt may require slight adjustments. Start with 50 seconds if your microwave is particularly powerful. The cake should be set but still slightly moist in the center. If undercooked, add 10 second increments until perfect. Remember that the cake continues cooking slightly even after removal.

Simple Variations To Try
This basic recipe welcomes easy modifications without compromising its simplicity. Add a tablespoon of peanut butter swirled through the batter before microwaving for a Reese's inspired treat. A drop of vanilla extract or dash of cinnamon adds surprising depth. For adults, a tiny splash of coffee liqueur transforms it into a sophisticated dessert. The beauty lies in experimentation with minimal ingredient investment.
Serving Suggestions
While delicious on its own, this cake reaches new heights with thoughtful accompaniments. A scoop of vanilla ice cream creates a hot and cold contrast that melts into the warm cake. Fresh berries add brightness that balances the rich chocolate. For ultimate indulgence, drizzle additional warm Hershey's syrup over the top just before serving, creating pockets of molten chocolate throughout each bite.
Frequently Asked Questions
- → Can I substitute the all-purpose flour with something else?
Yes, you can substitute all-purpose flour with whole wheat flour, almond flour, or a gluten-free flour blend. Note that texture and cooking time might vary slightly with alternative flours.
- → What can I use if I don't have Hershey's syrup?
If you don't have Hershey's syrup, you can substitute with 1 tablespoon of cocoa powder mixed with 1 tablespoon of sugar and a teaspoon of water. Melted chocolate or another chocolate syrup brand will also work.
- → Why did my cake overflow while cooking?
Overflow typically happens when the mug or ramekin is too small. Make sure to use a container that's at least twice the volume of your batter to allow room for expansion during cooking.
- → Can I make this cake vegan?
Yes, simply use oil instead of butter and ensure your chocolate syrup is vegan. Most Hershey's syrups are dairy-free, but always check the ingredients to confirm.
- → How do I know when the cake is done?
After microwaving for 1 minute, the cake should look set on top but still be slightly moist. If it appears too wet, microwave in additional 10-second intervals until just set.
- → What can I add to enhance the flavor?
Try adding a drop of vanilla extract, a pinch of cinnamon, a tablespoon of chocolate chips, or chopped nuts to the batter. For serving, consider toppings like whipped cream, fresh berries, or more chocolate syrup.