Preheat oven to 375 degrees and grease a rimmed cookie sheet (I used 2 mini pans for my photos).
In a large bowl, combine flour, sugar, baking powder, baking soda and poppy seeds.
FROSTING: While the cake is baking make frosting. Add butter to your sauce pan (the same one you melted the other butter in) and milk. Bring to a boil. Pour into a bowl with vanilla extract, almond extract (optional) and powdered sugar. Whisk until smooth. Pour frosting over your cake right after you pull it out of the oven and spread smooth if needed! Eat warm or let cool. Top with berries, lemon slices or sprinkles!
Feeds 24-48 depending on how large you cut the slices!