Ginger Crunch

Jun 22, 2025

The one pot bake that won’t DISAPPOINT.

One-Pot Ginger Crunch with Rolled Oats: A Classic Kiwi-Aussie Slice with the Perfect Icing Bite

There’s a reason ginger crunch remains a staple in Kiwi and Aussie kitchens — it’s simple to make, packed with warming ginger flavour. This one-pot rolled oat ginger crunch is an easy twist on the traditional recipe — fewer dishes, more flavour, and that unbeatable icing-to-base ratio we all secretly judge slices by


The Perfect Icing-to-Base Ratio (Yes, It Matters)

One of the hallmarks of a good ginger crunch is the generous layer of gingery icing. Not too thin that it disappears into the base, and not so thick that it overpowers the slice — just the right amount to leave a soft imprint of your teeth after the first bite. If you can see the teeth marks in the icing, you’ve nailed it. It’s the little things that make this slice so nostalgic and satisfying.


Why wholegrain Oats Instead of rolled or quick Oats?

Using wholegrain oats in the base gives the slice a rich, chewy texture that’s missing when quick oats (aka porridge oats) are used. Rolled oats keep their structure during baking and develop a subtle toasted flavour that pairs beautifully with the sweet, spicy icing. Quick oats, on the other hand, tend to dissolve into the butter mixture, creating a mushy base that just doesn’t hit the mark.

Rolled oats bring bite, texture, and character — exactly what you want in a slice that’s meant to hold up under a thick, glossy ginger topping.


One-Pot Wonder: Less Washing, More Slicing

This version is all made in a single pot — ideal for busy bakers, last-minute school lunches, or smoko on the go. Melt the butter and sugar, stir in the dry ingredients, press into your tin, bake, then pour the warm icing straight on top. Easy, nostalgic, and utterly delicious.


FAQ: One-Pot Ginger Crunch with Rolled Oats

1. Can I substitute rolled oats with porridge oats?
You can, but the texture will be softer and less chewy. Rolled oats give the slice its signature crunch and structure.

2. What’s the trick to getting the icing just right?
Pour the icing on while the base is still warm. This helps it set smoothly. You want it thick enough to leave teeth marks, but soft enough to cut cleanly.

3. How long will ginger crunch last?
Stored in an airtight container, it stays fresh for 4–5 days. It also freezes well if you want to make a double batch.

4. Can I add extra ginger for more spice?
Absolutely! If you love a stronger ginger hit, feel free to increase the ground ginger or even add chopped crystallised ginger to the base.


Whether you’re packing it for lunchboxes, serving it for smoko, or keeping it stashed for those afternoon tea cravings, this one-pot rolled oat ginger crunch is a crowd-pleaser — easy to make, full of flavour, and with that all-important icing layer that practically invites the first bite.

Don’t forget: if the icing holds your teeth marks, you’re onto a winner.

Do you love Ginger and want another easy delicious bake. Try my station gingernuts here

Ginger Crunch

The one pot bake that won't DISAPPOINT.
Prep Time15 minutes
Cook Time20 minutes
Servings: 20 pieces
Author: Philippa Cameron

Equipment

  • 1 Pot
  • 1 small brownie pan (9" x 13" or 23 x 33 cm)
  • 1 Dough whisk
  • 1 icing palette knife

Ingredients

Base

  • 150 grams butter
  • 1 cup brown sugar 220 grams
  • 1 cup flour 150 grams
  • 1 1/2 tsp baking powder
  • 1 1/2 cups wholegrain oats
  • 1/2 tsp salt
  • 1 tsp ginger

Icing

  • 2 cups icing sugar
  • 4 tsp ginger
  • 4 tbsp golden syrup
  • 150 grams butter

Instructions

  • Pre heat you oven to 180 fan bake.
  • Prepare a brownie tin (9" x 13" or 23 x 33 cm)

Base

  • Place the butter in a pot and begin to melt. Once it’s liquid add the sugar and stir until it’s dissolved.
  • Take off the heat and use your danish dough whisk (or wooden spoon) to add the flour, baking powder, rolled oats, salt, and ginger.
  • Press the mixture into the prepared tin. Use the a clean wet hand or the back of a spoon to press all the mixture into the corners, and make an even surface.
  • Bake the slice for 15 minutes (or until golden brown).
  • While the slice is baking, wash the pot so you can use it to prepare the icing.

Icing

  • Once the slice is cooked and out of the oven, begin to make the icing while it is still warm.
  • Place the butter, golden syrup, ginger and icing sugar in the pot over a very low heat. Stir often until all the ingredients are combined and smooth.
  • Pour the icing over the warm slice, and smooth out the icing.
  • Once cool cut into 20 pieces.