Preheat Oven: Heat that oven to 350°F (175°C). Prepare your 8-inch pan by greasing it or lining it with parchment paper.
Prepare Raspberry Swirl: In a saucepan over medium heat, cook 1 cup raspberries with 2 tbsp maple syrup and 1 tsp lemon juice until the raspberries break down and the mixture thickens. Set aside to cool.
Mix Dry Ingredients: In a large bowl, whisk together 1 cup almond flour, 1/2 cup coconut flour, 1/2 cup coconut sugar, 1 tsp baking powder, 1/2 tsp baking soda, and 1/2 tsp salt.
Blend Wet Ingredients: In a medium bowl, mix 1/4 cup melted coconut oil, 1/2 cup applesauce, 3 large eggs, and 1 tsp vanilla extract.
Combine: Stir the wet ingredients into the dry ingredients until well combined.
Assemble: Pour half of the batter into the prepared pan. Spoon half of the raspberry swirl over the batter and use a knife to gently swirl it in. Repeat with the remaining batter and raspberry swirl.
Bake: Bake for 30 minutes or until a toothpick inserted into the center comes out clean.
Cool and Serve: Allow the cake to cool in the pan for 10 minutes before transferring to a wire rack. Slice and enjoy!