If your coconut butter is firm, gently warm it in a double boiler or warm water bath until soft and stirrable
In a bowl, whisk together coconut butter, coconut oil, carob powder, sweetener, vanilla, and sea salt until smooth and glossy
Pour into a small parchment-lined dish or silicone mold (an 8x4 loaf pan works well for thick squares)
Sprinkle with toppings if desired
Freeze for 30–45 minutes, or until set
Slice into squares and store in the fridge or freezer in an airtight container
Let soften for a few minutes at room temperature before serving for the perfect fudge-like texture