Heat the oven to 190°C (Gas Mark 5 / 375°F).
In a large bowl, combine the flour, ground almonds, brown sugar, and baking powder. Mix thoroughly.
In a separate bowl, whisk together the melted butter, honey, vanilla extract, and eggs.
Pour the wet ingredients into the dry ingredients, and fold together to form a thick batter.
Lightly grease a lined baking tin (mine measured 8 x 8 inches), and pour in the batter. Spread it around to smooth out the top, and sprinkle on the flaked almonds.
Bake for around 25 minutes, or until the blondies are just set in the centre. They should still be quite soft. Leave to cool, then cut into 16 squares and serve.