Best Ever Keto Chocolate Cake

Best keto chocolate cake ever . I made it for my family once and they begge me to make more . One is pre diabetic, diabetic and two are on a tight eating routine including me.. They Loved it. Not excessively sweet and superbly chocolaty. Simple to make.. The surface was somewhat denser than my standard cakes yet not really awful.

Ingredients:

FOR THE CAKE:
Cooking spray
1 1/2 c. almond flour
2/3 c. unsweetened cocoa powder
3/4 c. coconut flour
1/4 c. flaxseed meal
2 tsp. baking powder
2 tsp. baking soda
1 tsp. kosher salt
1/2 c. (1 stick) butter, softened
3/4 c. keto friendly granulated sugar (such as Swerve)
4 large eggs
1 tsp. pure vanilla extract
1 c. almond milk
1/3 c. strong brewed coffee

FOR THE BUTTERCREAM

2 (8-oz.) blocks of cream cheese, softened
1/2 c. (1 stick) butter, softened
3/4 c. keto friendly powdered sugar (such as Swerve)
1/2 c. unsweetened cocoa powder
1/4 c. coconut flour
1/4 tsp. instant coffee powder
3/4 c. heavy cream
Pinch kosher salt