Step 1

Line 2 x 12 hole muffin tins with paper cases (18 in total) and preheat your oven to 200 degrees celsius.

Step 2

Place the butter into your Thermomix bowl and cook for 2 minutes, 60 degrees, speed If it hasn't quite melted, cook for a further 1 minute, 60 degrees, speed 2 until it has completely melted.

Step 3

Add the self raising flour, sugar, cinnamon, banana pieces, vanilla essence, eggs and milk and mix for 12 seconds on speed 4.

Step 4

Scrape down the sides of your Thermomix bowl and add 200 grams of the chocolate chips and use your spatula to gently stir through until the mixture has just combined.

Step 5

Divide the mixture evenly between the paper cases until they are approximately 2/3 full and sprinkle over the remaining chocolate chips.

Step 6

Place the trays into the oven to bake for approximately 20 minutes or until cooked through when tested with a skewer.

Step 7

Line 2 x 12 hole muffin tins with paper cases (18 in total) and preheat your oven to 200 degrees celsius.

Step 8

Place the butter into a microwave safe bowl and cook for 30 second spurts until it has just melted. Set aside to cool slightly.

Step 9

Place the bananas into a large jug and use a fork to mash. Add the milk, eggs and vanilla extract and whisk to combine.

Step 10

In a large bowl, add the self raising flour, sugar and cinnamon and stir to combine. Make a well in the centre.

Step 11

Add the banana mixture and melted butter and use a large spoon to mix until just combined.

Step 12

Add 200 grams of the chocolate chips and gently stir through - be careful not to overmix. It's ok to still have lumps in your mixture.

Step 13

Divide the mixture evenly between the paper cases until they are approximately 2/3 full and sprinkle over the remaining chocolate chips.

Step 14

Place the trays into the oven to bake for approximately 20 minutes or until cooked through when tested with a skewer.