We decided to make these brownie sandwiches for David's Valentine's Day party at school. I made two batches of brownies and spread them in a sheet cake pan. I baked them for about 16-17 minutes.
Then I used a small heart cookie cutter to cut the brownies.
I piped red frosting on top of one of the hearts. Then I stuck another heart on top of the frosting.
Finally, I sprinkled powdered sugar on top.