Gather all ingredients before starting recipe.
Melt butter in a medium skillet over medium high heat. Add corn, and sauté, stirring occasionally, until soft and slightly browned, about 4-6 minutes.
Transfer to a large bowl and add chopped chives.
Whisk flour, cornmeal or breadcrumbs, baking powder and cayenne in a medium bowl.
Mix together egg and buttermilk and add mixture the the corn. Add the dry ingredients and stir to combine with a fork. Add crab meat, season with kosher salt and mix to combine.
Pour canola oil in a deep pan or wok to come 1 1/2" up the side of the pan and heat over medium high heat until oil reaches 350°F. To test, drop a teaspoon of dough into oil, if it sizzles and starts to color, the oil will be hot enough.
Using a small ice cream scoop, drop balls into oil and fry until the beignets are nicely browned, then turn and brown the second side, about 2-3 minutes per side. Season with kosher salt.
Move the fried beignets to a wire rack and continue to fry the remaining batches. Season with kosher salt.
Serve the warm beignets with a creamy dipping sauce or a spicy mango salsa.