This Christmas, I’m making Betty’s Jelly Slice as a special treat for my family and friends. It’s colourful (fitting for the season), melt-in-your-mouth delicious and (most importantly) super-easy to prepare.

Betty's Jelly Slice
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Betty’s Jelly Slice: A Christmas delight. Photo source: Judith Salecich December 2021.

If you have been following my blog, you may remember I included the recipe for Betty’s Jelly Slice at the end of my story Betty Anderson: 100 years of gratitude and loving service (September 7, 2020). The story is a tribute to a dear friend, Elizabeth Annie (“Betty”) Anderson, of Rockhampton, who died on 25 February 2020, aged 100 years and 6 months.

Betty was a great cook. She was renowned for her baked goods: cakes, biscuits, scones and pastries. She continued to bake these goodies when she was well into her 90s. Her cake and biscuit tins were continually refilled so she always had something homemade to share with her visitors.

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Betty’s 2015 letter and accompanying recipe for Jelly Slice. Photo source: Judith Salecich 2020.

Surprisingly, though, Betty’s signature sweet, what I’ve called “Betty’s Jelly Slice”, is a refrigerator biscuit slice. It doesn’t require baking.

On Thursday 29 August 2019, Betty celebrated her 100th birthday. My husband Tony and I joined about 80 of Betty’s family and friends for High Tea at “The Church” events venue, the former St Andrew’s Presbyterian Church, Rockhampton. This was the church in which Betty was married and in which she worshipped until the building was sold in 2002.

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The Church Events Venue, the former St Andrew’s Presbyterian Church, Rockhampton. Photo source: Judith Salecich 2019.

On arrival at the venue, one couldn’t help but notice the boxes of Jelly Slice on a table near the entrance. Betty’s signature slice! There was a box for every guest: A tribute to Betty’s cooking skills and generous hospitality, and a memento of the occasion. “What a great idea,” I thought.

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Boxes of Jelly Slice, at Betty’s 100th birthday celebration. Photo source: Judith Salecich 2019.

Here’s my updated version of the recipe for Betty’s Jelly Slice, which (like me) you may like to make for your family and friends this Christmas.




1 x 250 g pkt shortbread biscuits

125 g butter


1 heaped dessertspoon plain gelatine
¾ cup boiling water
1 can (395 g) condensed milk

1/3 cup fresh lemon juice


1 pkt raspberry jelly crystals
½ teaspoon plain gelatine
1 cup boiling water

¾ cup cold water

Betty's Jelly Slice ingredients. Photo source: Judith Salecich 2021.
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Betty’s Jelly Slice ingredients. Photo source: Judith Salecich 2021.



  1. Crush the shortbread biscuits and place in mixing bowl.
  2. Add 125 g melted butter and mix well.
  3. Press the biscuit mixture firmly into a 27.5 cm X 17.5 cm slice tin lined with baking paper.
  4. Place the tray in the refrigerator to chill.


  1. Dissolve 1 heaped dessertspoon gelatine in ¾ cup boiling water.
  2. Pour the condensed milk into a mixing bowl. Add the dissolved gelatine and stir well.  
  3. Add the lemon juice and mix thoroughly.
  4. Pour the filling mixture over the prepared biscuit base. Return to the refrigerator.


  1. Place the raspberry jelly crystals and ½ teaspoon gelatine in a mixing bowl and mix well.
  2. Add 1 cup boiling water and stir thoroughly until the gelatine is dissolved.
  3. Add ¾ cup cold water and mix well.
  4. Pour the jelly mixture carefully over the firm filling and chill again.
  5. When set, cut into squares.

Tip (for Step 12)

I recommend you pour the jelly mixture over the chilled filling while the tray is in the refrigerator. The first time I made this slice, because the tray was full to the brim (!), I spilt some of the raspberry jelly when transporting the tray from the kitchen bench to the fridge.

Betty's Jelly Slice
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Betty’s Jelly Slice: A Christmas delight. Photo source: Judith Salecich December 2021.
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Judith Salecich

Writer, researcher, former secondary and tertiary teacher and public servant, wife, mother, grandmother, child of God, photography enthusiast, lover of life, history, food and all things creative.

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2 thoughts on “Betty’s Jelly Slice: Delight your guests this Christmas”

  1. I remember Betty’s Jelly Slice very well. I have her recipe. Your story has prompted me to think about making it for Christmas. We can now buy plant based condensed milk for the dairy/lactose intolerant family members. Thanks Judy.

    • Dear Gwen. That’s wonderful. I do hope you make it. The plant based condensed milk is a great substitute. Christmas greetings to you, Max and the family. A special hello to Emma. Love, Judy.

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