Preheat the oven to 350°F. Line an 8.5 x 4.5 inch loaf pan with parchment paper, leaving some overhang on the long sides for easy lifting.
Blend the cottage cheese, eggs, 1/4 cup melted butter and vanilla extract in a blender until completely smooth.
In a large bowl, whisk together the almond flour, coconut flour, granulated sweetener, baking powder and sea salt. Pour in the blended mixture and stir until a thick, smooth batter forms.
In a small bowl, stir together the golden sweetener, cinnamon and 2 tbsp melted butter until it forms a loose paste.
Spread half of the batter into the prepared pan and drizzle half of the cinnamon mixture over it. Add the remaining batter, then drizzle the rest of the cinnamon mixture on top.Drag a toothpick or the handle of a spoon through the batter in a zigzag pattern to create the swirl.
Bake for 50 to 60 minutes, until a toothpick inserted in the center comes out clean. Tent the pan loosely with foil after 35 minutes if the top is browning too quickly.
Cool the bread in the pan for 15 minutes, then lift it out with the parchment and cool completely on a wire rack before slicing.