In a large bowl, beat the room temperature butter with an electric whisk until light and fluffy.
Add the sugar and whisk again for 1-2 minutes until it’s creamy and airy.
Mix in the yogurt one tablespoon at a time, then add the almond extract and whisk until combined.
Gently fold in the ground almonds and flour until just mixed.
Chill the frangipane in the fridge while you prepare the cookie dough.