All you need is 110 g powdered sugar, 3 eggwhites, 55 g almond flour (ground almonds), 35 g flour, 100 g butter and a handful of raspberries.
With a wodden spoon, stir all ingredients except for the butter together. Melt the butter and let cook for a few minutes so its color changes to a nutty light brown. Let the melted butter cool down, then mix into the batter. Fill into a financier baking form (you could also use a madeleine form or miniature cupcake forms), push two frozen rasperries into each financier and bake at 180C/350F for 20 minutes.
Rasperry financiers in their baking form