These are gooey peanut swirl brownies baked in your slow cooker! They look good enough to eat even before cooking.

I was inspired to try out peanut swirl brownies by a photo and recipe I saw on Pinterest by Love and Olive Oil.
It looked absolutely delicious! So I decided to try my own slow cooker peanut swirl brownies.
Slow cooker bakes
Baking in the slow cooker is one of my favourite pastimes, it takes time but you can just leave it and get on with something else!
Armed with my inspiration, I set about to make my own version using a standard brownie recipe with added peanut swirl.
I was pleased to see that my brownie batter with the peanut swirl topping looked wonderful even before cooking!
After an hour it looked like this, it has started to rise and bake around the edges.

When finished the peanut swirl brownies were fudgy with great flavour from the peanut butter.

Lovely to share for a naughty treat! The family loved this and I get a lot of requests to make them again.

Ingredients
Here’s what you will need to make these brownies in your slow cooker.
- butter
- dark chocolate
- plain flour
- light brown sugar
- peanut butter
- icing sugar
Method
Here are the instructions for making these slow cooker peanut swirl brownies with hints and tips.
See the recipe card at the end of the post for the quantities.
- Chop the butter and chocolate up into small pieces and put in a bowl. Microwave on high for 1-2 minutes until melted. Allow to cool.
- Whisk the light brown sugar and eggs together for 3-5 minutes using an electric mixer, until it looks thick and creamy.
- Pour the cooled chocolate and butter mixture over the egg and sugar mixture and fold it in gently until completely mixed.
- Sieve in the flour and again fold in gently until completely incorporated, but do not overmix.
- Grease and line your slow cooker bowl with grease proof paper.
- Pour the brownie batter in.
- Mix the butter, peanut butter and icing sugar together in a small bowl, until smooth.
- Use a spoon to dollop it on top of the brownie batter.
- Swirl it together with the brownie batter with a knife.
- Cook on high for 2-3 hours until just set in the centre. Allow to cool a little before using the baking paper to remove from the slow cooker.
Cut into triangles and enjoy warm!

More slow cooker baking
I’ve also written all about baking in the slow cooker where you can find loads of tips for baking in a slow cooker along with tonnes of slow cooker baking recipes for cakes, scones, cookies, brownies, desserts, bread and much much more!

These slow cooker peanut brownies are delicious for dessert or with a cup of coffee for a cheeky treat.

Related
Recipe

Slow Cooker Peanut Swirl Brownies
Ingredients
For the brownies:
- 125 g (½ cups + 1 tbsp) unsalted butter
- 125 g (½ cups + 3 tbsp) good quality dark chocolate
- 80 g (½ cups) plain flour (all-purpose flour)
- 2 eggs
- 185 g (¾ cups + 3 tbsp) light brown sugar
For the peanut butter swirl:
- 40 g (3 tbsp) unsalted butter
- 100 g (¼ cups + 1 tbsp) smooth peanut butter
- 40 g (¼ cups) icing sugar
Equipment
Instructions
- Chop the butter and chocolate up into small pieces and put in a bowl. Microwave on high for 1-2 minutes until melted. Allow to cool.125 g unsalted butter, 125 g good quality dark chocolate
- Whisk the light brown sugar and eggs together for 3-5 minutes using an electric mixer, until it looks thick and creamy.185 g light brown sugar, 2 eggs
- Pour the cooled chocolate and butter mixture over the egg and sugar mixture and fold it in gently until completely mixed.
- Sieve in the flour and again fold in gently until completely incorporated, but do not overmix.80 g plain flour (all-purpose flour)
- Grease and line your slow cooker bowl with grease proof paper.
- Pour the brownie batter in.
- Mix the butter, peanut butter and icing sugar together in a small bowl, until smooth.40 g unsalted butter, 100 g smooth peanut butter, 40 g icing sugar
- Use a spoon to dollop it on top of the brownie batter.
- Swirl it together with the brownie batter with a knife.
- Cook on high for 2-3 hours until just set in the centre. Allow to cool completely before using the baking paper to remove from the slow cooker.













Sarah says
these look so so good! Screw the January detox!
Laura@Baking in Pyjamas says
I can imagine those tasted delicious, I love peanut butter and chocolate together. Thanks for linking up to Sweet and Savoury Sunday, stop by and link up again. Have a great day!!