Jersey Black Butter Blondies with Sea Salt

Preheat your oven to 180°C (350°F/ Gas Mark 4). Grease and line a 9x13 inch baking pan with parchment paper, leaving an overhang for easy removal.

In a large bowl, whisk together the melted Jersey butter, light brown sugar, and caster sugar until well combined.

Add the beaten eggs and vanilla extract and whisk until smooth.

In a separate bowl, whisk together the plain flour and baking powder.

Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Do not overmix.

Stir in the Jersey milk, grated cooked Jersey Royal potatoes and Jersey Black Butter until evenly distributed throughout the batter.

Pour the batter into the prepared baking pan and spread evenly. If desired, dollop extra Jersey Black Butter on top and swirl it gently into the batter with a knife.

Bake for 25-30 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs attached. Be careful not to overbake.

Remove from the oven and let cool completely in the pan before lifting out using the parchment paper overhang.

Cut into squares and sprinkle with sea salt flakes before serving.