Preheat oven to 180C and line an 8x8" (20x20cm) brownie tray with baking parchment
Mix together the Guinness, sugar, espresso powder, vanilla and salt in a bowl or mixer
Add the melted butter and oil and mix before stirring in the eggs and bringing everything together
Sieve in the flour and cocoa powder and gently stir into the batter then add the chocolate chips
Pour into the baking tray and bake for approximately 35 minute. Remove from ovens,
Make the frosting
Melt the white chocolate along with the Guinness, butter and vanilla extract in a Bain Marie (bowl over a simmering pan of water)
Let this cool for a few minutes before stirring in the icing sugar to form a smooth creamy frosting
Spread the frosting over the cooled brownies and cut into squares or bars
Video
Notes
With an 8x8" brownie tin you can either cut 9 large squares of brownies or 12 smaller squares, whatever you like.The brownies will keep for 4-5 days in an airtight tin or freeze for up to 3 months.To test if brownies are baked simply prick with a toothpick and it should come out coloured with a tiny bit of brownie pix attached, not completely clean as you would want with a cake.
My Top Tips*Always read the full recipe first. *Assemble all your ingredients and everything you need before you start. *For baking check the size of tins I'm using as this makes a big difference to your cakes. * I use medium sized eggs unless otherwise stated. * I use extra virgin olive oil unless otherwise stated. * I use unsalted butter unless otherwise stated. * Check out My Preserving Kit!
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