MAPLE BUTTER BARS

Ingredients

• 115g cold butter, cut into cubes, plus extra for greasing
• 175g plain flour
• 70g soft light brown sugar
• 30g butter, melted and cooled
• 2 large eggs
• 175g soft light brown sugar
• 115g maple syrup (the dark kind – Ocado has Buckwud Intense Dark Maple Syrup)
• 1 tbsp cider vinegar
• 2 tbsp plain flour
• ½ tsp baking powder
• 1 tsp vanilla extract