Using a stand mixer or bowl and electric beater, combine the softened butter and the brown sugar.
Add the eggs and extracts and beat until batter begins to lighten and gets a little fluffier, about 2-3 minutes.
Combine the dry ingredients with a whisk or fork in a small bowl.
Combine the dry ingredients with the wet ingredients, just until well incorporated.
Pour the batter into the greased 8x8 pan and bake for 25-35 minutes. Just like with a brownie, be careful not to over bake! They are done as soon as the top is matte and an inserted toothpick comes out clean.
Combine powdered sugar, milk, vanilla and cardamom in a small bowl and mix until lumps are gone.
Smooth over cooled blondies and enjoy!
Video
Notes
Store in an airtight container on the counter for up to 5 days.