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Leigh Anne Wilkes

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Home / Latest Posts / Recipes / Course / Dessert / Cookies / Jam Diagonals {Split Second Cookies}

Jam Diagonals {Split Second Cookies}

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By: Leigh Anne WilkesPosted: 1/23/20Updated: 1/23/23

This post may contain affiliate links. Please see disclosure policy here.

Jam Diagonals, also know as Split Second Cookies, are a fun version of a thumbprint cookie. Fill them with your favorite flavor of jam.

For a more traditional thumbprint cookie, check out these Salted Caramel Thumbprint Cookies and these Lemon Thumbprint Cookies.  Find all my cookie recipes here.

overhead shot of jam diagonals

Split Second Cookies

Jam Diagonals or Split Second Cookies are an oldie but a goodie.  The recipe comes from the mid 1950’s and was a winner in the Pillsbury Bake Off. It was inspired by the winner’s Scandinavian heritage.

I first had this cookie at a luncheon I attended several years ago.   I was helping in the kitchen and these cookies were being served as dessert.  After I ate one of them I decided I just needed to stay right there in the kitchen, within easy reach of the Jam Diagonals.  Let’s just say I ate more than my fair share!

shortbread cookies with jam

I’m not really sure why they are called split second cookies but my guess is they were a cookie that you had the ingredients on hand and could whip up a batch in a hurry.  But I really think they are called that because they disappear in a split second!

overhead shot of jam diagonals

How to Make Jam Diagonals

  • The base of the cookie is shortbread type cookie.  Divide the dough into four pieces and roll each piece into a  9″ rope.
ropes of split second cookie dough
  • Use your finger or the handle of a wooden spoon to form the indentation in the dough where the jam will go. Don’t make it too wide as it will widen as it bakes.  The dough should be about 1″ wide after making the indentation.
thumb pushing down on jam diagonal cookie dough
  • Use your favorite flavor of jam, I like raspberry. Don’t over fill with jam as it will run over the edges and then the cookies does not look as pretty.
Putting jam on split second cookies
  • After they are cool, drizzle with the lemon glaze and cut them into one inch pieces cut on the diagonal.  They look cuter cut that way and then they live up to their name of jam diagonals!  The lemon glaze adds a lot of flavor so don’t skip it.
drizzling glaze over jam diagonals

They are a pretty, dainty little cookie and believe me you are going to eat more than one!  And they would make a lovely little tea cookie too or a wonderful addition to a Christmas cookie plate.  Even a fun Valentine treat.  They are pretty much perfect anytime!

You are going to be tempted to eat more than your fair share, trust me.

split second cookie on a baking sheet

Some of my other favorite jam filled cookies include:

  • Apricot Jam Bars
  • Raspberry Shortbread Cookies
  • Raspberry Oatmeal Bars

For all of my other favorite kitchen products and tools visit my Amazon Store. 

Did you know I wrote a cookbook?  Check out the Holiday Slow Cooker Cookbook for 100 delicious recipes.

Split Second Cookie Recipe

4.50 from 2 votes

Jam Diagonals or Split Second Cookies

Recipe From: Leigh Anne Wilkes
Split Second Cookies are a fun version of a thumbprint cookie.  They are also known as Jam Diagonal cookies.  Fill them with your favorite flavor of jam.
serves: 48 cookies
Prep:15 minutes
Cook:20 minutes
Total:30 minutes
Rate Recipe

Ingredients

  • 1/2 cup butter softened
  • 1/4 cup granulated sugar
  • 1 egg
  • 1 tsp vanilla
  • 1/8 tsp salt
  • 1 1/4 cup flour
  • 1/3 cup raspberry jam

Glaze

  • 3/4 cup powdered sugar
  • 4-5 tsp lemon juice to a good drizzling consistency

Instructions

  • Cream butter and sugar together. Add in egg, vanilla until creamy and fluffy
  • Gradually stir in flour and salt until blended. Divide dough into fourths.
  • On lightly floured surface, with hands, roll each fourth into a 9″ rope.
  • Place 3″ apart on greased cookie sheet.
  • With finger or handle of woode spoon, make 1/2" depression down center of each rope.
  • (Ropes will flatten to about 1″ wide strips).
  • Fill depressions with jam, using a small spoon.
  • Bake in a preheated 350 degree oven for 12-15 minutes or until golden.
  • Cool on cookie sheet.
  • For frosting, blend powdered sugar and lemon juice until smooth and carefully spread over jam. As soon as frosting is set, cut each piece diagonally into 12 piece.

Nutrition Facts:

Calories: 48kcal (2%) Carbohydrates: 7g (2%) Protein: 1g (2%) Fat: 2g (3%) Saturated Fat: 1g (6%) Cholesterol: 8mg (3%) Sodium: 25mg (1%) Potassium: 7mg Fiber: 1g (4%) Sugar: 4g (4%) Vitamin A: 64IU (1%) Vitamin C: 1mg (1%) Calcium: 2mg Iron: 1mg (6%)
* Disclaimer: All nutrition information are estimates only. Read full disclosure here.
Course:Cookies
Cuisine:American
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Originally posted February 4, 2009

If you’ve tried these Split Second Cookies or any other recipe on Your Homebased Mom, then don’t forget to rate the recipe and let me know how it went in the comments below, I love hearing from you!

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  1. Laurie says

    Posted on 2/23 at 1:34 pm

    I made these yesterday for Jessica’s birthday. Jessica can’t eat a lot of sugar so I adjusted the recipe a bit. I used sugar-free jam and insteady of the icing I lightly sprinkled some powdered sugar over the diagonals just before I cut them. I found that rolling the portions on a lightly floured surface added enough flour to make the cookie crack just a little. I use baking mats and so I decided to roll them right on the mat instead. It worked great! Thanks for the yummy recipe…the cookies were a hit.

    Reply
  2. Jessica6903 says

    Posted on 2/6 at 9:38 pm

    Please forgive my dumb question as I don’t bake very often — do I use lemon juice freshly squeezed from lemons or from a jar? Or does it matter? The look very yummy and I want to try making them!

    Reply
  3. Jodi says

    Posted on 2/5 at 12:40 pm

    Thank you! These look so good!

    Reply
  4. Sher's Creative Expressions says

    Posted on 2/4 at 10:59 pm

    I think this would be something my hubby would love for Valentine’s Day. Thank you for sharing this recipe. I’m going to give it a try for sure.

    Blessings,

    Sher

    Reply
  5. Pham Fatale (Jackie) says

    Posted on 2/4 at 9:19 pm

    Thanks for sharing. Nice photos! I’ll definitely try this one next time I have guests over for tea 😉

    Reply
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