• Preheat the oven to 350 degrees Fahrenheit and line a 8-inch cake pan with parchment paper, or liberally spray it with cooking spray.
• Mix the eggs, applesauce, pure maple syrup, pure vanilla extract, and fresh grated ginger until the wet ingredients are well combined.
• Add the almond flour, baking powder, pumpkin pie spice, and sea salt to the mixing bowl and mix until the dry ingredients and the wet mixture are combined into a smooth batter.
• Pour batter into the prepared cake pan and spread it into an even layer.
• Bake on the center rack of the preheated oven for 40-45 minutes or until the top is golden brown and the cake is baked through.
• Insert a digital thermometer into the center of the cake. It is ready if the internal temperature is 190 degrees Fahrenheit or higher.
• Allow the cake to cool for at least 30 minutes before slicing and serving. For the cleanest slices, wait until the cake is room temperature before slicing.
• If you’re frosting the cake, make sure it is room temperature before frosting.

Prepare the Frosting:

• Stir together the frosting ingredients in a small bowl until well combined. Spread the frosting over the cooled cake evenly. If need be, refrigerate the cake until the frosting has set up slightly for cleaner slices.