Preheat oven to 350 degrees.

Spread almonds evenly on a baking sheet and warm for 10 minutes.

Let almonds cool for 5 minutes.

Add almonds to food processor or high power blender. 

Blend until mixture reaches a smooth almost liquid consistency, this can take 5-10 minutes. Stop occasionally to scrap down sides.

Add in vanilla, agave, and cacao powder.

Blend until desired nut butter consistency is reached, can take about 5-7 minutes. 

Store in airtight container and refrigerate.