Drizzle butter in a 9" round cake pan; sprinkle sugar over top. Arrange raspberries, open ends up, over sugar mixture; sprinkle with almonds.
In a bowl, combine remaining ingredients except garnish. Beat with an electric mixer on medium speed for 4 minutes. Pour into pan.
Bake at 350 degrees for 35 to 40 minutes, until a toothpick tests clean. Immediately place a heatproof serving plate upside-down over pan; turn plate and pan over. Leave pan over cake for one minute to allow sugar mixture to drizzle over cake; remove pan.
Cool 10 minutes before serving. Garnish as desired and serve warm.