Peanut Butter Squares

This Saturday we took advantage of the summer weather to pack a picnic and head out for a walk along the Water of Leith (Balerno to Edinburgh). This recipe seemed perfect for cutting into squares and packing in a lunch box to snack on as we went. They were so yummy that we ate the rest during the England v USA world cup match - so, perfect for all occasions really!
The pictures don't really do justice to them, I think I should have turned off the flash, but I've included a photo anyway.

They're good warm with a cup of tea but for the packed lunch option leave them in the fridge overnight as they become a bit more moist that way.
I would definitely make these again but maybe with some chocolate chips to add something extra. Yum!
Here is the recipe, from All Cakes Considered (becoming slightly overused on here, I know, but their cakes are so good!):

Ingredients: Click for measurement conversion chart
1/2 cup unsalted butter at room temperature
1/2 cup caster sugar
1/2 cup brown sugar
1 large egg
1/3 cup crunch peanut butter
1/2 teaspoon vanilla extract
1 cup of all purpose (plain) flour
1/2 teaspoon baking soda
1/4 teaspoon salt
1 cup of rolled oats (not quick cook)

1. Preheat the oven to 180 C or 350 F. Grease and line a 9 inch square baking pan.
2. Cream together the butter and sugars. Add the egg and beat well. Add the peanut butter and vanilla extract and beat well.
3. In a separate bowl, dry whisk the flour, baking soda and salt. Then add the dry ingredients to the creamed mixture and mix well.
4. Add the oats and mix well.
5. Spoon the batter into the baking pan and smooth out with a spatula. Bake for 20 minutes.
6. Remove from the oven and allow to cool for ten minutes before removing from the pan or cutting into squares while in the pan.