Preheat your oven to 160 degrees and line a 12 x 28cm loaf tin with baking paper.

Place the butter, caster sugar and cocoa into a large saucepan and cook over a low heat while stirring regularly for 5 minutes or until butter has melted and ingredients have combined.

Remove the saucepan from the heat and add the vanilla extract, eggs, plain flour and Baileys and whisk to combine.

Pour the easy Chocolate Baileys Brownies into your prepared tin and bake for 30 - 35 minutes.

Remove the brownies from the oven and allow them to cool completely in the tin before cutting into bite size pieces