Preheat your oven to 375°F and lightly grease a standard ceramic ramekin with coconut oil.
In a medium bowl, whisk together the egg whites, chocolate protein powder, cacao powder, almond flour, baking powder, and sea salt until the batter is completely smooth.
Pour the chocolate batter into the prepared ramekin, filling it about three-quarters of the way.
Gently place the almond butter into the very center of the batter, pressing down slightly so it is fully submerged by the cake mixture.
Bake for 12 to 14 minutes until the edges are firm and set, but the center remains slightly soft and jiggly to the touch.
While the cake is baking, combine the raspberries and maple syrup in a small saucepan over low heat, mashing them with a fork until they form a glossy, thickened sauce.
Remove the cake from the oven and let it rest for 2 minutes before carefully running a thin knife around the edge and inverting it onto a serving plate.
Drizzle the warm raspberry coulis over the top of the cake and serve immediately while the center is still molten.