Reminiscent of extra-buttery, almond-flavored shortbread, Smörbakelser are a Swedish Christmas tradition!
Preheat oven to 400.
Cream together the softened butter, sugar and egg yolk until smooth. Mix in flour and almond extract until a smooth dough forms.
Press into the bottoms and up the sides of the tartlet tins, as pictured above. Keep your shaped dough concave- they will fill out the tins as they bake!
Bake for about 10 minutes, or until starting to turn lightly golden brown.
Remove from oven and get the cookies out of the tins immediately- before letting them cool. The best way to do this is by grabbing them individually with an oven mitt, flipping them upside down and dropping them lightly from about 6 inches above the counter. You should be able to lift the tins right off!