Heat oven to 425 degrees Fahrenheit.
Use a stick of softened butter to coat 6 ramekins or 6 muffin tins with butter. Dump a bit of cocoa powder into each, and tilt the ramekin/tin until cocoa coats the entire thing.
Create a double boiler on your stove. To do this, place a medium pot on a stove and fill it with water. Bring this water to a boil. Place a glass bowl on top of the pot so that the bottom is heated by the steam but is not touching the water.
Melt ½ cup unsalted butter in the glass bowl. When melted, add 6 oz chocolate. Stir together until chocolate is completely melted and combined with the butter.
In a separate bowl, use an electric mixer to combine 3 eggs, 2 egg yolks, and ¾ cup granulated sugar.
Hand mix in chocolate/butter mixture, ¼ cup all purpose flour, and ⅛ tsp salt.
Pour into the prepared ramekins. Place in the oven and cook for about 10-12 minutes, until edges are set, but the middle still jiggles when shaken.
Remove the lava cakes from the oven and allow them to rest for 5 minutes before turning onto a plate. Serve with ice cream and raspberries. Enjoy!