San Dieguito Lunch Lady Peanut Butter Bar

These peanut butter bars are a tribute to my Granny, Edna “The Lunch Lady” Palmer.

She and her fellow Lunch Ladies created this recipe at San Dieguito High School. They were so popular that they wound up on the menu at all the elementary schools and Junior Highs in our town!

San Dieguito Lunch Lady Peanut Butter Bar

For those "in the know," these classic peanut butter bars are schoolyard crack!
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Cook Time 10 minutes
Cooling Time 30 minutes
Course Dessert
Cuisine American
Servings 16
Calories 238 kcal


  • ¼ cup milk
  • 1 cup sugar
  • 4 tbsp butter
  • 1 cup peanut butter creamy
  • dash salt
  • tsp vanilla extract
  • 3 cups Old Fashioned Oats


  • In a sauce pan, heat the milk, sugar and butter just until it begins to boil. Remove from heat.
    ¼ cup milk, 1 cup sugar, 4 tbsp butter
  • Stir in peanut butter, salt, vanilla and oats.
    1 cup peanut butter, dash salt, ⅛ tsp vanilla extract, 3 cups Old Fashioned Oats
  • Pour into an 8-inch glass baking dish lined with wax paper.
  • Refrigerate 30 minutes.
  • Remove from baking dish and cut into squares.


Darcy’s Details:

For the photo, we cut them into eighths.  I recommend 16ths, though!  
These are perfect for picnics!  Serve with:


Calories: 238kcalCarbohydrates: 29gProtein: 6gFat: 12gSaturated Fat: 4gPolyunsaturated Fat: 2gMonounsaturated Fat: 5gTrans Fat: 0.1gCholesterol: 8mgSodium: 106mgPotassium: 166mgFiber: 2gSugar: 17gVitamin A: 94IUCalcium: 24mgIron: 2mg
Keyword peanut butter
Tried this recipe?Let us know how it was!