These cookies are made with three types of chocolate for a rich, deep flavor.

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Ingredients

Ingredient Checklist

Directions

Instructions Checklist
  • Preheat the oven to 400 degrees. Line baking sheets with Silpats or parchment paper; set aside. In a small bowl, sift together flour, baking powder, and salt; set aside.

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  • In a heatproof bowl, or in the top of a double boiler, set over a pot of simmering water, melt together unsweetened and semisweet chocolates and butter; set aside to cool.

  • In the bowl of an electric mixer fitted with the whisk attachment, beat eggs, sugar, and vanilla on medium speed until light and fluffy, about 3 minutes. Add cooled, melted chocolate mixture, and combine on low speed. Add flour mixture, and continue to beat on low speed until almost combined, about 1 minute. Remove bowl from mixer; stir in milk chocolate by hand.

  • Using a 1/2-ounce ice-cream scoop, drop dough onto prepared baking sheets about 3 inches apart. Bake until set, 12 to 15 minutes. Let cookies cool completely on baking sheets.

Cook's Notes

Store in airtight containers at room temperature up to three days.

Reviews (48)

103 Ratings
  • 5 star values: 23
  • 4 star values: 33
  • 3 star values: 34
  • 2 star values: 12
  • 1 star values: 1
Rating: Unrated
04/16/2012
I run a site call http://MakingVanilla.com that shows people how to make their own vanilla extract so I am always looking for new recipes. These look amazing and I can't wait to try them!
Rating: Unrated
06/26/2011
You really should try these cookies-2/3 cup of flour is not a typo-Publix has a cookie similiar to this cookie. If you like really chewy, chocolate cookies-you will love these. Theirs has NO flour in their chocolate cookies similiar tasting to these. I had to stop making them because of my diabetes-maybe I will try them with the sugar free chocolate and splenda-- But these are really good cookies.
Rating: Unrated
06/25/2011
I have made these cookies several times and they are always a HUGE hit. They are incredibly rich and chocolately. When you make them the dough is very liquidy due to the small amount of flour - don't worry about it, they are great!
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Rating: 5 stars
06/25/2011
Baked mine for 10 minutes and they were ooey gooey and delicious.
Rating: 5 stars
06/25/2011
This recipe/method is similar to the flourless and almost flourless chocolate cakes that are really creamy choclatey, hence the name "mudslide cookies". They're DELICIOUS, by the way. We'll make these again and again!
Rating: Unrated
06/25/2011
2/3rds cup flour can't be right. I would believe 1 2/3 cups flour. To make 4 dozen cookies this is too little flour. 2 tsps baking powder demands more flour. I will try this with measurement changes. I do have all of the chocolate required on hand but I may cut down there too. My kitchen is my laboratory. Mykele
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Rating: Unrated
06/25/2011
Are they kidding? 2/3 cup of flour and nearly 2-1/2 POUNDS of chocolate? Sorry but chocolate is very expensive and I'm not about to try a recipe that has ingredient amounts that are suspect! Some guidelines should have been given! We aren't all Rockefellers out here and most of us have to watch our budgets! The Martha Stewart I used to watch knew that and acted accordingly. Her staff needs to remember that!
Rating: Unrated
06/25/2011
This recipe has amost 2 1/2 pounds of chocolate. Could this be right? Please comment if you've tried this. Thank you!
Rating: Unrated
10/28/2010
How long do they keep? Can you make the dough ahead of time and freeze it?
Rating: Unrated
02/11/2009
I just made these. they're incredible. One thing though, I had to smoosh the cookies down with my fingers before baking so they would flatten out a bit. If you go to my website experimentalcookie you can see a write up I did on them.
Rating: Unrated
01/21/2009
Chewy
Rating: Unrated
01/15/2009
can anyone who has made these cookies tell me if they turn out chewy or crispy?
Rating: Unrated
01/15/2009
can anyone who made this cookie tell me if it's chewy or crunchy/crispy ??
Rating: Unrated
01/13/2009
I always use `Callebaut chocolate. It is the chocolate the professionals use and it is absolutely the best.
Rating: Unrated
01/13/2009
I always use `Callebaut chocolate. It is the chocolate the professionals use and it is absolutely the best.
Rating: Unrated
01/12/2009
I am not into adding up the calories or fat content of individual items in a recipe or checking the packaging of the ingredients and then dividing by 36 cookies to get these numbers. I believe it should be the responsibility of the MS kitchens to provide this for us. Kraft Foods does it with all of their online recipes.
Rating: Unrated
01/12/2009
Are these a hard, soft or chewy cookie?
Rating: Unrated
01/12/2009
Antheagov - Unsweetened chocolate is readily available in packages containing individually wrapped 1 ounce squares. 8 to a package I believe. It's located in the baking isle of your grocery store. Just use 6 squares for this recipe. No scale required! :)
Rating: Unrated
01/12/2009
Using an ice-cream scoop is really a very "Martha" thing to do. It's just so that when you are dropping your cookies onto the cookie sheet, that they are all the same uniform size. If you don't have an ice-cream scoop, I am sure that you can use a scant tablespoon, or a heaping teaspoon to get the same results. Just keep an eye on your first batch coming out of the oven to make sure you don't overcook them. I also use the ice-cream scoop method when I am making meatballs, so that all of my meatballs
Rating: Unrated
01/12/2009
1 ounce is 30 ml which is like 2 tablespoons (or 6 teaspoons), so 1/2 ounce is 1 tablepsoon. you can go by that if you don't plan on buying a new ice cream scoop
Rating: Unrated
01/12/2009
you need a scale to measure the ounces. not a liquid measure.
Rating: Unrated
01/12/2009
If you do not have the ice scoop when you buy then the oz. is written on the package. Other wise take something with known measurement on it --like a childs medicine cup. Put the amount of water in it then pour into your ice cream scoop and see what oz. size it is.
Rating: Unrated
01/12/2009
How do you measure ounces? How much is one ounce equal to? Is it equal to one cup? Please Help! Thanks! Anthea Govender
Rating: Unrated
01/11/2009
I think recipes here seem to be poorly explained because they are usually poorly read.
Rating: Unrated
01/11/2009
katmak88, use any free online conversion tool when you don't know measurements (for example, http://www.onlineconversion.com/cooking_volume.htm). Given that 1 oz. is 2 tablespoons, 1/2 oz. would be 1 tbsp. Although the recipe says an "ice cream" scoop, it's really more the size of a large melon baller (the bowl would be about an inch in diameter). Recipes here are often poorly explained and written -- it's a shame.
Rating: Unrated
01/11/2009
How much is a half ounce icecream scoop? 1TB? 2TB? Thanks, Kathi
Rating: Unrated
01/11/2009
I made these for my sister's birhday last year. They are awesome! She's a true chocohalic and was blown away by them . With all that chocolate, how could they be anything but great.
Rating: Unrated
01/11/2009
I see a lot of comments, but has anyone made the cookie? Is it any good?
Rating: Unrated
01/11/2009
Ladies, you will be able to get by with 2/3 cup of flour easily by melting semi-sweet chocolate chips instead of chopping bar type semi-sweet chocolate as the chips have an emulsifier that makes the batter less runny. As to giving the nutritional info... I think that that would add to the staff cost for giving us a free internet web site to use. I pay a small fee for America's Test Kitchen web site and get much more thorough information.
Rating: Unrated
01/11/2009
I see people comment on the lack of nutritional information on almost every recipe that is posted here. I hate to state the obvious, but the nutritional information is on the packaging of every ingredient (except herbs, spices and flavorings). My son has been a Type 1 diabetic for 12 years now and I have been calculating that stuff for all of that time using the info on packages.
Rating: Unrated
01/11/2009
Really Ninichick? I hear what you are saying, but just add up the chocolate and eggs and you'll have a good idea. But bet you can't eat just one!
Rating: Unrated
01/11/2009
Really Ninichick? I hear what you are saying, but just add up the chocolate and eggs and you'll have a good idea. But bet you can't eat just one!
Rating: Unrated
01/11/2009
How come there is never any nutritional information for any of these recipes? I need to know at least the caloric and fat numbers.
Rating: Unrated
01/11/2009
You stir in the milk chocolate by hand after you add the flour. It is the "chocolate chip" part of the recipe.
Rating: Unrated
01/11/2009
What about the milk chocolate? It didn't say to melt it with the other chocolates.
Rating: Unrated
01/11/2009
for nehpetsr~ The amount of flour is correct, look at the amount of eggs. This recipe is like a chocolate truffle cookie recipe that I make. It works and is delicious!
Rating: Unrated
01/11/2009
why do you need to convert to grams???
Rating: Unrated
01/11/2009
why would you need to
Rating: Unrated
01/11/2009
WHY WOULD YOU HAVE TO CONVERT POUNDS AND OUNCES TO GRAMS???
Rating: Unrated
01/11/2009
this recipe can't be correct with ONLY 2/3 cup flour!!???
Rating: Unrated
01/11/2009
for susiesue -right under ingredients it says about 4 dozen cookies
Rating: Unrated
01/11/2009
for susiesue -right under ingredients it says about 4 dozen cookies
Rating: Unrated
01/11/2009
for susiesue -right under ingredients it says about 4 dozen cookies
Rating: Unrated
01/11/2009
Chocoholiics cookies! How many cookies does this make? I hope a lot for the amount of chocolate that is used.
Rating: Unrated
01/11/2009
That's a lot of chocolate!!!!!
Rating: Unrated
01/11/2009
I immediately think alcohol. Shows you my mindset. LOL. It still sounds like a good cookie even without the alcohol.
Rating: Unrated
01/11/2009
what makes this cookie a mudslide
Rating: Unrated
12/06/2008
had to add a little more flour, had a hard time converting ounces and pounds to grams; but it was worth it- the cookie for the chocoholics in the family