Monster Stuffed S’mores Cookies are chocolate chip cookies stuffed with Hershey bars and marshmallows. Add some monster eyes and festive sprinkles to make perfect Halloween cookies!
Halloween is such a fun reason to bake some fun and yummy treats. Edible candy eyeballs can turn pretty much any treat into a monster, perfect for serving at Halloween parties. If you leave off the sprinkles and eyeballs, these stuffed s’mores cookies are delicious for the rest of the year too!
Ingredients in Monster Stuffed S’mores Cookies
Butter – Real butter works best. Make sure the butter is softened to room temperature before creaming it with the sugars, egg, and vanilla.
Egg – One large egg will bind all of the other ingredients together.
Vanilla – One teaspoon of vanilla adds a lot of flavor to the cookies. The higher the quality of the vanilla, the better.
Sugars – You will need white sugar and light brown sugar. For best results, make sure your brown sugar is soft and fresh.
Flour – All-purpose flour works best, but you can use a gluten-free alternative if needed.
Baking soda – This is the leavening agent in the cookies. Make sure your baking soda is not old or expired.
Semi-sweet chocolate chips – Chocolate chips always make cookies better, right?! You can use milk chocolate chips if you prefer.
Marshmallows – You need one large marshmallow to place in the center of each cookie. The marshmallow will melt into the cookie as it bakes.
Hershey bar squares – Hershey bars are necessary for s’mores! Break a Hershey bar into sections and place each section in the center of each cookie along with the marshmallow.
Halloween sprinkles and candy eyeballs – Adding sprinkles and candy eyeballs on top of the baked cookies makes them festive for Halloween. Make sure to add these right after taking the cookies out of the oven – the melted marshmallow will be sticky enough for the sprinkles to stick.
How to make Monster Stuffed S’mores Cookies
Preheat the oven to 350°.
Line a baking sheet with parchment paper or a silicone baking mat. Set aside.
MAKE THE COOKIE DOUGH
Place the butter, egg, vanilla extract, white sugar, and brown sugar into a large mixing bowl and beat with an electric mixer until very well combined (2-3 minutes).
Add the flour and baking soda to the mixing bowl and mix until fully incorporated and a soft dough is formed.
Fold the chocolate chips into the cookie dough.
Place the dough in the refrigerator and allow it to chill for one hour.
ASSEMBLE THE COOKIES
Remove the chilled dough from the refrigerator, use a large cookie scoop out ¼ cup size balls of dough, and place them, evenly spaced, on a baking sheet. I was able to fit six cookies on a standard-size baking sheet.
Use your hands to flatten the dough balls to form large, flat circles.
Place one or two small Hershey bar squares in the center of each cookie.
Place a marshmallow on top of the chocolate squares and press the sides of the cookies up around the marshmallows, leaving the tops of the marshmallows exposed.
BAKE AND DECORATE THE COOKIES
Bake for 10 minutes, or until the bottoms of the cookies begin to turn golden brown and the marshmallows flatten out and become gooey. Be careful not to overcook or the marshmallows will melt and absorb into the cookies.
Remove the cookies from the oven and allow them to rest on the baking sheet for 5-10 minutes before gently transferring them to a wire cooling rack to cool completely.
Add a few sprinkles and candy eyeballs on top of the melted marshmallows.
How to make The BEST Chocolate Chip Cookies:
After trying out multiple chocolate chip cookie recipes over many years, I have picked up several important tips for making the absolute BEST Chocolate Chip Cookies!
- Make sure that you have enough flour in the dough. If the dough is too sticky, you may need to add a little bit of flour.
- Spend a little extra time when you mix the shortening and sugars. Creaming them together for 2-3 minutes will improve the consistency of your cookies.
- Preheat the oven. This will help your cookies turn out right every time!
- Use a cookie scoop! If you want all your cookies to be perfectly shaped and have them all be the same size, a cookie scoop is the way to go.
- Use parchment paper or a silicone baking mat. Doing this will make it really easy to remove the cookies from your cookie sheet so that you don’t have to scrape them off the pan – they will just slide right off in perfect shape!
- Don’t overbake the cookies – when I take mine out of the oven, they still look slightly under-baked but they will continue to bake on the cookie sheet for a couple more minutes so that’s ok!
Chocolate Chip Cookie troubleshooting tips
Over the years, I have had many cookie failures along with all of my successes and I have learned a few things along the way! You may have a favorite chocolate chip cookie recipe that you love, but they don’t always turn out perfectly. Why?! Here are some helpful tips for some common cookie problems!
Why are my chocolate chip cookies flat?
If your chocolate chip cookies are flat and spread out too much while baking, you may need to add a little bit more flour. Start by just adding a few tablespoons of flour to the batter and see if that is enough to help the shape of your cookies. If you are using a recipe with butter, make sure you aren’t melting the butter. There are a few cookie recipes that actually call for melted butter, but most of them just require the butter to be softened to room temperature. Which leads to the next question…
How do you soften butter to room temperature?
The best way to soften butter is to set it out for a few hours before you make your cookies. Since most of us (or maybe just me!) aren’t that prepared or don’t think that far in advance, there are a few tricks to softening butter perfectly in just a matter of minutes. My favorite way to soften butter is in the microwave. It’s definitely fast, but you do have to be very careful not to melt it. Just put the whole stick of butter in the microwave (as long as it isn’t wrapped in foil!) and microwave for about 6-7 seconds. If the butter is still really cold, try another 5-7 seconds and check it again. You may need a few intervals, and if the butter is starting to feel soft, you can shorten the final interval to just a few seconds to make sure it doesn’t start melting.
I actually prefer to use the defrost setting on my microwave – I don’t know exactly what that mode does differently, and it takes a little bit longer (closer to 30 seconds), but it seems to be easier to get the butter to soften without melting.
Why are my chocolate chip cookies crispy and hard?
If your chocolate chip cookies are hard, crunchy, or crispy, you probably baked them too long. Cookies will continue to bake for a couple of minutes on the hot cookie sheet even after you remove them from the oven, so you don’t want to wait until they are golden brown before taking them out! My husband really likes a few cookies to be a little more well-done so that he can dip them in milk, so I usually make half a tray of cookies for him that gets cooked a couple of minutes longer.
Why do my chocolate chip cookies burn on the bottom but aren’t done in the middle?
If your cookies are always burning on the bottom, it is probably a cookie sheet issue! If you are using really dark cookie sheets, the bottoms of your baked goods will tend to burn before they are actually cooked all the way through. Using too much cooking spray can create the same problem. I prefer to use lighter colored non-stick pans so that I don’t have to use cooking spray at all. As mentioned above, I have been converted to silicone baking mats over the last couple of years and I love how easy it is for cookies to come off the tray – no sticking ever!
MORE DELICIOUS HALLOWEEN TREAT RECIPES TO TRY:
- HALLOWEEN SUGAR COOKIE BARS
- HALLOWEEN BROWNIE COOKIES
- HALLOWEEN NO- BAKE CHEWY CARAMEL COOKIES
- HALLOWEEN SKELETON COOKIES
- HALLOWEEN CAT COOKIES
- HALLOWEEN CHOCOLATE TRUFFLES
- HALLOWEEN SPRINKLE COOKIES
- HALLOWEEN PEANUT BUTTER COOKIE PIZZA
- HALLOWEEN COBWEB COOKIES
- M&M HALLOWEEN COOKIES
- BAKED MONSTER HALLOWEEN DONUTS
- EASY GHOST HALLOWEEN COOKIES
Monster Stuffed S’mores Cookies are perfect for Halloween! Delicious chocolate chip cookie recipe stuffed with Hershey bars and marshmallows, then decorated to look like little monsters.
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