Line a baking sheet with parchment paper.
In a large mixing bowl, add the peanut butter, bone broth, coconut flour, powdered sugar and vanilla extract. Mix on low until combined into cohesive dough and there are no dry parts.
Using your hands, form the dough into 13 egg shapes and place on the parchment-lined baking sheet.
In a heatproof bowl, add the dark chocolate. You can melt using a double boiler or you can do 30 second intervals in the microwave. If microwaving, make sure to stir between each one to prevent burning.
Once the chocolate is melted, drop the eggs into the chocolate one at a time and coat them completely. I like to use a fork, like a spoon, so excess chocolate can drip back into the bowl. Place the chocolate coated eggs back on the baking sheet.
Put the baking sheet in the freezer so the chocolate can set, about 15 to 20 minutes.
Remove from the freezer and drizzle the remaining chocolate on top for a pretty finish. I like to finish these with a sprinkle of flaky sea salt, but this is totally optional.
Store in the fridge for up to 1 week.