Combine dry ingredients: In a small bowl, whisk together the cocoa powder, sugar, and salt to eliminate any clumps.
Add ingredients to the crockpot: Pour the almond milk, coconut cream, and cocoa mixture into the crockpot. Whisk until smooth and well combined.
Cook: Cover and cook on low for 2 hours, stirring every 30 minutes to prevent any sticking.
Add vanilla: Stir in the vanilla extract during the last 10 minutes of cooking.
Serve: Ladle the hot chocolate into mugs and garnish with your favorite dairy-free toppings.