In a food processor, combine the beans, oil, pumpkin puree, maple syrup, vanilla extract, unsweetened cocoa powder, salt, oats and baking powder. Process until smooth.
Meanwhile, make the topping whisking together the pumpkin, egg, maple syrup and pumpkin pie spice. Top each brownie with a small teaspoon of pumpkin topping. For the swirl, use to knife and make a swirling motion onthe top of each brownie.
Bake for 30 minutes minutes. To see if they are done, stick a knife in the brownie. It should come out clean when they are ready.
Once the brownies are cool, sprinkle with coarse sea salt.