Natural sweetness AND nostalgia. Discover the story behind this beloved treat, why dates are the ideal foundation, and how to bake the perfect old-fashioned date slice.

There’s something special about recipes that bridge the past with the present. Old-fashioned date slice is one of those feel-good treats that carry the comforting taste of nostalgia while delivering a wholesome, homemade vibe that modern desserts can rarely match.

Read on for the story behind this beloved treat, why dates are the ideal foundation, and of course, how to bake the perfect old-fashioned date slice.

A Slice of History

Date slice has long been a favourite across homes for both its simplicity and satisfying flavour. Often found in community cookbooks and passed down through generations, they gained popularity as a reliable way to create a sweet treat using kitchen cupboard staples.

For many Australians, it’s more than just a dessert – it’s a connection to family traditions. An old-fashioned date slice would often appear at festive gatherings or as an after-school snack. The combination of buttery, crumbly oat layers and indulgently sweet date filling is timeless, and each slice feels like a bite of heartfelt history.

Why Dates Deserve the Spotlight

Dates are the unsung heroes of classic baking, and as a natural source of sweetness, they are more relevant than ever today. Their natural sweetness complements baked goods without the need for too much added sugar. More than just delicious, dates are also packed with nutrients.

High in Fibre

So your digestive system keeps running smoothly.

Rich in Vitamins and Minerals

Dates provide essentials like potassium, magnesium, and vitamin B6.

Natural Energy Boosters

Thanks to their natural sugars, they’re ideal for giving a little lift during your day.

When choosing dates for baking, Medjool dates are a popular option for their plumpness and rich caramel flavour. However, more budget-friendly types like Deglet Noor also work wonderfully when softened slightly.

The Perfect Old-Fashioned Date Slice Recipe

Here’s how to make your own batch of this instant crowd-pleaser. The ingredients are simple, the steps are straightforward, and the results? Unbeatable.

Ingredients

Here's everything you’ll need to whip up this classic date slice.

For the filling

2 cups (300g) of pitted dates, chopped

1 cup (250ml) of water

1 teaspoon vanilla extract

For the base and topping

1 cup (90g) of rolled oats

1 cup (150g) of plain flour

1 teaspoon baking powder

½ cup (100g) of brown sugar

125g of butter, melted

Step-by-Step Instructions

1. Prepare the Date Filling

Combine the chopped dates and water in a medium saucepan. Cook over medium heat, stirring often, until the dates break down into a thick paste (about 5-7 minutes). Stir in the vanilla extract and set aside to cool.

2. Make the Base and Topping

Preheat your oven to 180°C (160°C fan-forced). Line a rectangular baking pan with baking paper.

In a mixing bowl, combine the rolled oats, plain flour, baking powder, and brown sugar. Stir in the melted butter until the mixture forms a crumbly texture.

3. Assemble the Slice

Press half of the oat mixture firmly into the bottom of the prepared baking pan to form an even base. Spread the cooled date filling over the base, then sprinkle the remaining oat mixture evenly over the top. Gently press down to secure the layers.

4. Bake to Perfection

Bake for 25-30 minutes, or until the top is golden brown. Allow the slice to cool in the pan before transferring to a wire rack. Once completely cool, cut into squares or slices.

Tip: For super neat slices, chill the date slice in the fridge before cutting.

Variations to Try

Looking to switch things up? Here are some ideas to spin your own story of this classic treat.

Nutty Finish

Add crushed walnuts, almonds, or pecans to the topping for a satisfying crunch.

Spiced Warmth

Sprinkle cinnamon, nutmeg, or mixed spice into the oat mixture for extra aromatics.

Gluten-Free Version

Swap out the plain flour for a gluten-free flour blend and ensure your oats are certified gluten-free.

Vegan Options

Replace the butter with a plant-based alternative like coconut oil or vegan butter.

No matter the variation, the result is bound to be delicious!

Serving and Storing Tips

Here’s how to get the most from your freshly baked date slice.

Serving Suggestions

Enjoy your slice with a cup of tea or coffee, or serve it warm with a scoop of vanilla ice cream for a more indulgent dessert.

Storing

Keep leftovers in an airtight container at room temperature for up to a week.

Freezing

Did you know that date slices freeze exceptionally well? Simply wrap each slice individually in cling wrap, then place them into a freezer-safe bag. Defrost at room temperature when you’re ready to enjoy.

Hint: Preparing a big batch and freezing extras is an excellent way to have a treat on hand for unexpected guests.

Give it a go

With its wholesome ingredients, nostalgic charm, and unbeatable flavour, an old-fashioned date slice is an enduring staple in the world of homemade treats. Baking one feels like a warm hug from the past, and sharing it with friends or family will spread that comforting feeling even further.

Why not give it a try this week? Get your apron on, pop some dates in the pan, and rediscover the taste of a timeless favourite. We’d love to hear about your experience – do you have a fond memory of date slice, or a new variation you’d like to share?

Of course, you are going to need some dates. These organic raw pitted dates are ideal for baking.

Keen on using natural sweetness in your baking? Read our beginner's guide to baking with dates.