Preheat your oven to 335F.
Sift and mix coconut flour, almond flour, cinnamon salt, and baking soda.
Combine eggs, erythritol, vanilla extract, almond extract, lemon juice, melted butter, coconut milk, vinegar, stevia, and food coloring.
Mix the wet ingredients into the dry ingredients, using a hand mixer until it is fluffy.
Divide your batter between your a muffin top pan and bake for 17-18 minutes.
Remove from the oven and let cool on a cooling rack for 10 minutes.
Slice cakes in half and fry them in butter until crisped.
Let cool on cooling rack again.
Mix together butter, cream cheese, heavy cream, and powdered erythritol until fluffy. Add food coloring until color is attained.
Divide icing in between middle of the cakes and make a sandwich. Garnish with lemon zest and pistachios.