Marshmallow and Peanut Butter Cobbler

Name: Marshmallow and Peanut Butter Cookie Cobbler
Prep time: 10 min
Cook time: 15 min
Total time: 25 min
Ingredients: 1 cup butter (softened); 1 cup creamy peanut butter {don't use natural}; 1 cup white granulated sugar; 1 cup brown sugar (packed); 1 teaspoon vanilla; 2 eggs; 2 1/2 cups all-purpose flour; 1 teaspoon baking powder; 1 1/2 teaspoons baking soda; 1/2 teaspoon salt; miniature peanut butter cups; marshmallows; optional: brown sugar

25 minutes

Jump to Recipe

By: Julie Blanner16 Comments
Updated: 9/27/21

This post may contain affiliate links. Please read our disclosure policy.

This is a marshmallow and peanut butter cobbler bake that makes an incredible one dish dessert. Serve it with a scoop of ice cream, homemade whipped cream, or all by itself… you’ll never regret making this incredible cookie cobbler dessert!

A cookie cobbler is perfectly crunchy on the top and soft and gooey in the middle. It’s decadent and dreamy, and I hope you love it as much as we do!

Peanut butter Cookie Cobbler in a creme brulee pan, topped with ice cream

Originally shared June 24, 2014, this post was updated with fresh content and details September 27, 2021.

As much as I don’t like to admit it, sometimes the stress of daily life can be overwhelming. In those times, the only logical thing to do is bake. For me, baking is therapeutic.

Even if I don’t indulge on the result of my baking adventures, it calms me. But let’s be honest, I indulged. I nearly over-indulged!

No complaints though, it’s those moments of stress where the best desserts are born. Marshmallow and peanut butter cookie cobbler, for example!

For years, I’ve been baking a cookie at a time in a spice dish, ramekins or creme brûlée dishes. It gives a cookie cobbler like texture with a slightly gooey center and crunchy exterior.

When topped with ice cream, it’s absolutely heavenly! This past year, I’ve seen several recipes for skillet cookies, but in my humble opinion, there’s no need to add another item to your cabinet. I often keep a little extra cookie dough in the freezer ready for such an occasion.

I started with my standard peanut butter cookie recipe and looked to my cabinet for add ins. Fortunately, we had marshmallows left from s’mores on the grill and some miniature Reese’s Peanut Butter Cups. Served a la mode with homemade magic shell, it’s the ultimate dessert recipe!

Easy to make
Flexible – use whatever add-ins you’d like
Great with ice cream
Soft inside, crunchy outside

While most cobblers are fruit based, you can also make a cookie or brownie based cobbler like this chocolate cobbler and this amazing salted caramel cookie cobbler. I highly recommend you try them ALL!

Butter softened – I tend to use salted butter for baking because that’s what I have on hand. If you use salted, cut back on the added salt in this recipe.
Creamy peanut butter – Don’t use natural peanut butter for baking.
Granulated sugar – white granulated sugar.
Brown Sugar – packed
Vanilla Extract – Make your own vanilla extract if you’d like – either way this ingredient adds a hint of flavor and fragrance.
Eggs – for binding and rising
All Purpose Flour – bleached or unbleached is fine.
Baking Powder – two kinds of leavening agents in this recipe, to give the cobbler a light, airy texture.
Baking Soda – always make sure it’s fresh!
Salt
Miniature Peanut Butter Cups
Marshmallows
Optional: brown sugar for topping

Variations

My go to is semi-sweet chocolate peanut butter cups, but you can also make this dessert with milk, white or dark chocolate candies if you prefer.
Try a different kind of peanut butter candy – Reese’s Pieces or m&ms would be fun!
You can leave the marshmallows out if you’d like, or replace with another favorite sweet candy.

How to Make this Peanut Butter Cobbler in Five Simple Steps

Mix butter, peanut butter, sugars, vanilla and eggs well. In a separate bowl, combine dry ingredients. Incorporate dry ingredients into wet mixture.
Refrigerate one hour.
Preheat oven to 375 degrees and grease your oven safe baking dish. Press in a thin layer of cookie dough.
Add marshmallows and peanut butter cups, sprinkle more cookie dough and brown sugar on top.
Bake and serve warm – with a scoop of ice cream, of course.

Tips

Make Ahead – I like to prep this cookie cobbler in the afternoon, refrigerating the dough until dinner is complete and then putting it in the oven for a piping hot decadent dessert. So effortless!
How You Know When It’s Ready – This peanut butter cobbler will take around 15 minutes to bake, based on your dish size. Be careful not to over bake the cobbler. It should have a slightly gooey center when it comes out of the oven.
Add a Little Extra Brown Sugar – Because if some is good, more is better! Sprinkle a little extra brown sugar anytime… either before you bake, right when it comes out of the oven, or even on individual servings as you plate.
Best Served Fresh From the Oven – Cobblers are best served hot straight out of the oven. The chocolate will be warm and gooey. However, it’s delicious when heated up the next day, too!

How to Serve

Top it off with a scoop of homemade vanilla ice cream
Try a scoop of peanut butter ice cream instead
Or a dollop of whipped cream

Caramel Sauce
Secret Chocolate Sauce (as pictured in these photos)
Candied Nuts

Frequently Asked Questions

What’s the best dish to bake this recipe in?

This cookie cobbler recipe, as written, is meant for individual ramekins. However, you can easily use a traditional baking dish, you’ll just need to watch your time.
If this recipe is baked as a whole and not individually, you’ll probably need to allow anywhere from 25-35 minutes in the oven!
*Recommended baking time is with a smaller dish. I use large creme brûlée dishes.

Is a cookie cobbler different than a cookie cake?

Yes – they are two different desserts! While the flavors and ingredients can be quite similar, a cobbler is looser and more textural. A cookie cake is baked evenly and can be sliced.