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Texas Sheet Cake Cookies with glossy chocolate icing are stacked in front of a red tray, with one cookie showing a tempting bite taken out.
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4.45 from 236 votes

Texas Sheet Cake Cookies

Texas Sheet Cake Cookies. Ooey gooey frosting, dense chocolate cookie, does it get ANY better?
Prep Time20 minutes
Cook Time7 minutes
Total Time27 minutes
Course: Snacks
Cuisine: American
Servings: 24 cookies
Calories: 146kcal
Author: Laura

Ingredients

Texas Sheet Cake Cookies

  • 10 TBSP salted butter, softened divided
  • 2/3 cup sugar scant 2/3 cup, divided, scant simply means a little less than a full 2/3 cup
  • 1/4 cup cocoa powder sifted
  • 1 tsp vanilla extract
  • 1 egg
  • 1 tsp baking soda
  • 1/2 tsp salt
  • 1 1/3 cup flour

Icing

  • 1/4 cup salted butter
  • 1 tbsp cocoa powder
  • 2 1/2 tbsp milk divided, You may need a little extra to thin it down if needed
  • 1 3/4 cup powdered sugar sifted
  • 1/2 tsp salt

Instructions

To make cookies

  • Preheat oven to 350˚
  • Line two baking sheets with parchment paper or foil or silpat and set aside
  • Melt 2 tbsps of butter, a scant 1/3 cup of sugar (take 1/3 cup of sugar and remove 2 teaspoons of it) and the cocoa powder together just until melted then let it cool
  • Meanwhile, cream the remaining 1/2 cup butter and the 1/3 cup sugar together until light and fluffy
    Sugar, cocoa powder, and a stick of butter in a gray mixing bowl, ready to be combined for delicious Texas Sheet Cake Cookies.
  • Beat in the egg and vanilla
    A glass mixing bowl containing creamed butter and sugar, with cracked eggs and vanilla extract added, ready to be mixed with an electric beater for delicious Texas Sheet Cake Cookies.
  • In a separate bowl mix the baking soda, salt and flour
    A close-up view of a mound of flour with a pile of baking powder on top, placed in a mixing bowl—perfect for starting your Texas Sheet Cake Cookies recipe.
  • Stir into the sugar mixture
    A bowl of crumbly dough mixture with a wooden spatula, showing an early stage of baking preparation for Texas Sheet Cake Cookies.
  • Then add the cocoa mix and stir until well mixed
    A mound of chocolate dough, destined for Texas Sheet Cake Cookies, sits atop a pile of pale, crumbly dough, with a wooden spoon partially mixing the ingredients.
  • Line two baking sheets with silpat or parchment paper
  • Drop the dough by tbsp onto the lined baking sheets, making about 24 cookies
    Texas Sheet Cake Cookies dough balls spaced evenly on a parchment-lined baking sheet, ready to be baked.
  • Bake each sheet 7-8 minutes or until just starting to set, don't over bake or burn them, use a spatula to slightly flatten the tops of the cookies
    Five Texas Sheet Cake Cookies with cracked surfaces are arranged on a sheet of parchment paper.
  • Let them cool on the sheets for a few minutes and then transfer to a cooling rack
    Twelve Texas Sheet Cake Cookies on parchment paper, arranged in neat rows, with visible cracks and a few grease spots marking the paper.
  • Place the cooling rack over one of the baking sheets so the icing drips onto the sheet
  • When the cookies are cool make the icing, it does set up so don't make it beforehand

To make the icing

  • Whisk the butter, cocoa powder, and milk together over medium heat until melted and mixed together
    A saucepan containing a brown liquid mixture for Texas Sheet Cake Cookies, with pieces of butter melting and a wooden spatula stirring.
  • Remove from the heat and add the powdered sugar and salt stirring to combine, then drizzle in enough extra milk to make the icing thin enough for dipping
    A metal whisk mixing flour and cocoa powder in a glass bowl—perfect for starting Texas Sheet Cake Cookies.
  • Gently take each cookie and dip the top in the icing and then place it back on the baking sheet to set up
    A hand dips a Texas Sheet Cake Cookie into a bowl of rich chocolate batter.
  • Once they've set up gently lift them off the baking sheet and place on a platter or plate
    A cooling rack holds Texas Sheet Cake Cookies, some topped with a smooth chocolate glaze and some without, all placed on a baking sheet.
  • There will be plenty of icing left on the sheet and it makes a tasty treat to pick at, don't waste it
  • They can be eaten right away but if you want the icing to harden up give them at least 3-4 hours
    A cooling rack with rows of Texas Sheet Cake Cookies, each topped with a smooth chocolate glaze.
  • Store them lightly covered but not airtight because the icing will get gummy
    Twelve Texas Sheet Cake Cookies with light brown frosting are arranged on a red tray, with a wire cooling rack in the background.

Video

Notes

  • The recipe calls for a "scant" 2/3 cup of sugar, divided--basically, you want to measure the sugar and then take out 2 teaspoons of sugar

Nutrition

Serving: 1 cookie | Calories: 146kcal | Carbohydrates: 20g | Protein: 1g | Fat: 7g | Saturated Fat: 4g | Polyunsaturated Fat: 0.3g | Monounsaturated Fat: 2g | Trans Fat: 0.3g | Cholesterol: 25mg | Sodium: 199mg | Potassium: 32mg | Fiber: 1g | Sugar: 14g | Vitamin A: 217IU | Calcium: 8mg | Iron: 1mg