Preheat oven to 325 convection or 350 conventional.
Melt butter in the microwave or on the cooktop.
Add 1 tablespoon powdered swerve, 2 tablespoons of almond flour plus one teaspoon almond flour and 1 tablespoon cocoa powder for cheesecake crust.
Spray pan with coconut oil and place crust mixture in 4-inch springform pan, preferably heart-shaped.
Bake crust for 20 minutes.
Remove crust when done and allow to cool for at least 30 minutes.
In the meantime, blend softened cream cheese, eggs, swerve, vanilla, cream and stevia with an electric mixer until smooth. Add 1 tablespoon of ricotta cheese if desired and blend until combined.
Add cheesecake filling to the springform pan on top of the crust and smooth with a spatula and wet finger. Leave 3/4 inch of space at top of pan. There will be leftover filling that you can bake in separate custard cups.
Place the cheesecake and extra cups in the oven and bake for 40 minutes (less for the extra). Begin testing for doneness with a toothpick. Shake cheesecake gently, remove when there is still some jiggle overall with the edges firmer and the center still moist. The cheesecake will continue to cook after you remove it from the oven. Overcooking makes it firmer and rubbery.
Allow cheesecake to cool for about two hours.
Use a thin knife to go around the edges of the springform to make sure nothing sticks. Remove from the springform pan.
Using a double boiler or microwave on low, melt chocolate chips and coconut oil. Stir until thoroughly until combined and thinner consistency is formed.
Spread topping mixture over cheesecake to completely cover the top and allow chocolate to drizzle down sides of cheesecake.
If desired, spread extra chocolate topping mixture on a cold flat surface. You can put a cookie sheet or pan in the freezer for 15 mins and use the flat side. Spread chocolate and continue to work the chocolate over cold flat surface until it loses sheen. Place surface with chocolate back in the freezer until a fingerprint barely registers, about 1 minute. Use a flat dough scraper pushing away from you to make chocolate curls and shreds.
Garnish cheesecake with chocolate shavings and curls, raspberries and mint sprigs if desired.