Cookies & Cream Slab Cake

We just cel­e­brat­ed the 13th birth­day of my mid­dle boy and as the tra­di­tion in our fam­i­ly goes, I take requests and sug­ges­tions for Birth­day Cake fla­vors. After much dis­cus­sion and many reject­ed ideas (mom­ma always had final say, hah!), Brod and I set­tled on 2 pos­si­bil­i­ties.

They were both some­thing I hadn’t thought of pre­vi­ous­ly and as a result, he impressed me great­ly. What’s fun­ny is that about 10 reject­ed ideas in David began to shoot me “dirty looks”. As if I was break­ing the fam­i­ly tra­di­tion of let­ting the kid­dos pick their B-day cake fla­vor with my quick, slight­ly harsh vetoes.

He for­got that mom­ma has final say because mom­my baked and birthed the birth­day boy — but that’s okay. 

My flur­ry of dis­missals result­ed in expo­nen­tial­ly increas­ing Brod’s desire for me to agree and he start­ed spout­ing off ideas right and left, each one slight­ly bet­ter than the last.

When the con­ver­sa­tion was fin­ished we had a cake plan. Once David heard the fla­vor we set­tled on — his dirty looks turned to hun­gry looks.

As you can see from the recipe title, Brody request­ed Cook­ies and Cream Slab Cake! Doesn’t that sound tasty?!

Good job Brod! Mom­ma loves you, have a slab of cake!

This deli­cious cake is quite sim­ple to make — main­ly requir­ing all of the usu­al ingre­di­ents (don’t wor­ry they are all list­ed in the recipe card) and a pack­age of Oreo cook­ies. The entire cake is ready to serve in under one hour — per­fect for this busy mom­ma!


flour, bak­ing soda and salt (ignore the tee­ny flecks of pep­per that wound up in my salt pig — they’ll dis­ap­pear in no time).

Add the sug­ar to but­ter melt­ed in water.



Whisk in sour cream.

Alter­nate adding flour and whisked egg.

Crush half of the Ore­os.

Pour cake bat­ter into a pre­pared half-sheet sized bak­ing sheet.

Sprin­kle top with crushed Ore­os.


Mix togeth­er warm but­ter­cream icing over the stove­top.

Add in the remain­ing half of the pack­aged Ore­os. 

Stir gen­tly to com­bine.

Pour over the sheet cake!

Be sure to serve with milk — it’s a law!

Cook­ies & Cream Slab Cake
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Prep Time
20 min
Cook Time
30 min
Prep Time
20 min
Cook Time
30 min
  1. 1½ c water
  2. 3 sticks but­ter, salt­ed
  3. 3 c sug­ar
  4. 3 c flour
  5. 1 t kosher salt
  6. 1t bak­ing soda
  7. ¾ c sour cream
  8. 3 eggs
  9. 24 crushed Ore­os
  1. ½ c milk
  2. 1 stick but­ter, salt­ed
  3. 6 c pow­dered sug­ar
  4. 1 t vanil­la
  5. ½ t kosher salt
  6. 24 crushed Ore­os
  1. Pre­heat oven to 350°. Pre­pare a rimmed half sheet bak­ing sheet by coat­ing with but­ter and lin­ing with parch­ment paper.
  2. In a saucepan com­bine water & but­ter. Bring to a boil until but­ter melts. Remove from flame and add sug­ar, stir­ring to com­bine.
  3. Com­bine dry ingre­di­ents (flour, salt & bak­ing soda). Whisk eggs in a small bowl.
  4. Alter­nat­ing between flour and eggs, add each in thirds — stir­ring between each addi­tion, until all ingre­di­ents are added & com­bined. Fold in sour cream.
  5. Pour cake into pre­pared pan and sprin­kle crushed Ore­os even­ly over the top of the cake. Bake for 25–30 min­utes until the cake is set and the cen­ter is no longer jig­gling when the pan is nudged.
  1. While the cake is bak­ing, pre­pare but­ter­cream by melt­ing but­ter in a medi­um saucepan with milk. Once milk and but­ter are com­bined, add vanil­la, salt and pow­dered sug­ar*. Once desired con­sis­ten­cy is reached, add crushed Ore­os**. Stir to com­bine.
  2. Pour warm but­ter­cream over warm cake, spread­ing to the cor­ners.
  3. Serves 20
  1. *add pow­dered sug­ar 2 c at a time and stir to com­bine. Con­tin­ue adding pow­dered sug­ar incre­men­tal­ly until desired con­sis­ten­cy is reached.
  2. **I like to keep the crushed Ore­os chunky.
Adapt­ed from White Texas Sheet Cake
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