Preheat oven to 180c (170C for fan assisted.)
Line a 20cmx20cm square tin with baking paper.
Beat the butter and sugar until light and fluffy in consistency. Please don’t rush this step; it makes all the difference!
Add half of the lemon zest and mix well.
Slowly add the eggs one at a time beating until thoroughly combined.
Add half of the lemon juice.
Mix the baking powder and flour and then add to the mixture folding in with a metal spoon until just combined.
Pour the batter into the prepared tin.
Place in the middle of the oven for 20 minutes.
Remove Your Best Lemon Drizzle Blondies from the oven and leave to cool on a wire rack.
Once cool mix the icing sugar with the remaining lemon zest and add the lemon juice a bit at a time until the icing is the consistency you want. Careful that you don’t add too much and make it too runny. If it is still stiff after all of the juice is combined, add a drop of water.
Cover your blondies with the glaze. Once dry slice into squares and serve!