Preheat your oven to 350°F (175°C). Grease an 8×8-inch baking pan or line it with parchment paper.

In a bowl, whisk together flour, baking powder, and salt until combined.

In a larger bowl, cream softened butter and sugar until light and fluffy.

Beat in the eggs one at a time, then mix in the vanilla extract.

Gradually add dry ingredients to the wet mixture until just combined. Gently fold in cranberries and pistachios.

Pour batter into the prepared pan and spread evenly. Bake for 25-30 minutes or until golden brown and a toothpick comes out clean.

Allow to cool before slicing into squares.