Slow Cooker Cookie Bars

Slow Cooker Frosted Cookie Bars

Prep Time 25 minutes
Cook Time 3 hours
Total Time 3 hours 25 minutes
Servings 12 cookie bars
Calories 943 kcal
Author Slow Cooker Gourmet


For cookies:

  • 2 cups butter softened
  • 14 ounces sweetened condensed milk
  • 2 tablespoons baking powder
  • 1 teaspoon salt
  • 2 teaspoons vanilla extract
  • 4 cups all purpose flour
  • 1 cup white chocolate chips
  • 1.75 oz rainbow sprinkles (plus more for topping, if desired)

For frosting:

  • 1 cup butter at room temperature
  • 4 cups powdered sugar
  • 1 tablespoon vanilla extract
  • 4 tablespoons heavy cream
  • 2 drops or more food coloring, if desired



  1. In a large mixing bowl with handheld mixer beat softened butter for 2 minutes
  2. Add condensed milk, baking powder, salt and vanilla
  3. Slowly add flour while mixing at medium speed until fully incorporated
  4. Using a spoon mix in white chocolate chips by hand
  5. Add sprinkles and stir just enough to mix but don't over mix as they will bleed into batter
  6. Pour into slow cooker that has been sprayed with nonstick cooking spray
  7. Cover and cook on high for 2-3 hours until edges are just lightly browned and middle appears set
  8. Let cool completely (for a few hours at least) then frost


  1. In a large mixing bowl with handheld mixer beat softened butter for 2 minutes
  2. Add 3 cups of powdered sugar, vanilla and 2 tablespoons cream and continue to mix at medium high speed for 2-3 minutes. Add more sugar if too thin or more cream if too thick.
  3. Add food coloring and mix until combined
  4. Frost cookie bars and serve!

Recipe Notes

I cooked these on high in my casserole crock for 3.5 hours

I do not recommend using nonpareil sprinkles as they will bleed into your batter and turn it an odd color

Recipe adapted from Jen's Favorite Cookies

Nutrition Facts
Slow Cooker Frosted Cookie Bars
Amount Per Serving
Calories 943 Calories from Fat 504
% Daily Value*
Fat 56g86%
Saturated Fat 35g219%
Cholesterol 143mg48%
Sodium 660mg29%
Potassium 429mg12%
Carbohydrates 103g34%
Fiber 1g4%
Sugar 70g78%
Protein 8g16%
Vitamin A 1585IU32%
Vitamin C 0.9mg1%
Calcium 234mg23%
Iron 2.2mg12%
* Percent Daily Values are based on a 2000 calorie diet.